diff --git a/.gitignore b/.gitignore
index 57a64b86765..2ee833aec70 100644
--- a/.gitignore
+++ b/.gitignore
@@ -8,3 +8,5 @@ amp.zip
 languages/*.pot
 languages/*.php
 built
+composer.lock
+
diff --git a/.gitmodules b/.gitmodules
deleted file mode 100644
index a2da7e17ea5..00000000000
--- a/.gitmodules
+++ /dev/null
@@ -1,4 +0,0 @@
-[submodule "dev-lib"]
-	path = dev-lib
-	url = https://github.com/xwp/wp-dev-lib.git
-	branch = master
diff --git a/.travis.yml b/.travis.yml
index ad755016ee4..387d02f91ff 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -20,7 +20,7 @@ cache:
 install:
   - if [[ $DEV_LIB_SKIP =~ composer ]]; then composer install --no-dev; fi
   - nvm install 8.11.4 && nvm use 8.11.4
-  - export DEV_LIB_PATH=dev-lib
+  - export DEV_LIB_PATH=vendor/xwp/wp-dev-lib
   - source $DEV_LIB_PATH/travis.install.sh
 
 script:
diff --git a/Gruntfile.js b/Gruntfile.js
index 725b78af2a1..18c7d5defdc 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -34,7 +34,7 @@ module.exports = function( grunt ) {
 				stderr: true
 			},
 			readme: {
-				command: './dev-lib/generate-markdown-readme' // Generate the readme.md.
+				command: './vendor/xwp/wp-dev-lib/generate-markdown-readme' // Generate the readme.md.
 			},
 			phpunit: {
 				command: 'phpunit'
@@ -113,7 +113,7 @@ module.exports = function( grunt ) {
 			versionAppend = new Date().toISOString().replace( /\.\d+/, '' ).replace( /-|:/g, '' ) + '-' + commitHash;
 
 			paths = lsOutput.trim().split( /\n/ ).filter( function( file ) {
-				return ! /^(blocks|\.|bin|([^/]+)+\.(md|json|xml)|Gruntfile\.js|tests|wp-assets|dev-lib|readme\.md|composer\..*|webpack.*|languages\/README.*)/.test( file );
+				return ! /^(blocks|\.|bin|([^/]+)+\.(md|json|xml)|Gruntfile\.js|tests|wp-assets|readme\.md|composer\..*|webpack.*|languages\/README.*)/.test( file );
 			} );
 			paths.push( 'vendor/autoload.php' );
 			paths.push( 'assets/js/*-compiled.js' );
diff --git a/bin/amphtml-update.py b/bin/amphtml-update.py
deleted file mode 100644
index bf6071200c4..00000000000
--- a/bin/amphtml-update.py
+++ /dev/null
@@ -1,648 +0,0 @@
-"""
-This script is used to generate the 'class-amp-allowed-tags-generated.php'
-file that is used by the class AMP_Tag_And_Attribute_Sanitizer.
-
-A bash script, amphtml-update.sh, is provided to automatically run this script.  To run the bash script, type:
-
-`bash amphtml-update.sh`
-
-from within a Linux environment such as VVV.
-
-See the Updating Allowed Tags and Attributes section of the Contributing guide
-https://github.com/Automattic/amp-wp/blob/develop/contributing.md#updating-allowed-tags-and-attributes.
-
-Then have fun sanitizing your AMP posts!
-"""
-
-import glob
-import logging
-import os
-import platform
-import re
-import shutil
-import subprocess
-import sys
-import tempfile
-import collections
-import json
-import google
-
-def Die(msg):
-		print >> sys.stderr, msg
-		sys.exit(1)
-
-
-def SetupOutDir(out_dir):
-	"""Sets up a clean output directory.
-
-	Args:
-		out_dir: directory name of the output directory. Must not have slashes,
-			dots, etc.
-	"""
-	logging.info('entering ...')
-	assert re.match(r'^[a-zA-Z_\-0-9]+$', out_dir), 'bad out_dir: %s' % out_dir
-
-	if os.path.exists(out_dir):
-		subprocess.check_call(['rm', '-rf', out_dir])
-	os.mkdir(out_dir)
-	logging.info('... done')
-
-
-def GenValidatorPb2Py(out_dir):
-	"""Calls the proto compiler to generate validator_pb2.py.
-
-	Args:
-		out_dir: directory name of the output directory. Must not have slashes,
-			dots, etc.
-	"""
-	logging.info('entering ...')
-	assert re.match(r'^[a-zA-Z_\-0-9]+$', out_dir), 'bad out_dir: %s' % out_dir
-
-	subprocess.check_call(['protoc', 'validator.proto',
-												 '--python_out=%s' % out_dir])
-	open('%s/__init__.py' % out_dir, 'w').close()
-	logging.info('... done')
-
-
-def GenValidatorProtoascii(out_dir):
-	"""Assembles the validator protoascii file from the main and extensions.
-
-	Args:
-		out_dir: directory name of the output directory. Must not have slashes,
-			dots, etc.
-	"""
-	logging.info('entering ...')
-	assert re.match(r'^[a-zA-Z_\-0-9]+$', out_dir), 'bad out_dir: %s' % out_dir
-
-	protoascii_segments = [open('validator-main.protoascii').read()]
-	extensions = glob.glob('extensions/*/validator-*.protoascii')
-	# In the Github project, the extensions are located in a sibling directory
-	# to the validator rather than a child directory.
-	if not extensions:
-		extensions = glob.glob('../extensions/*/validator-*.protoascii')
-	extensions.sort()
-	for extension in extensions:
-		protoascii_segments.append(open(extension).read())
-	f = open('%s/validator.protoascii' % out_dir, 'w')
-	f.write(''.join(protoascii_segments))
-	f.close()
-
-	logging.info('... done')
-
-
-def GeneratePHP(out_dir):
-	"""Generates PHP for WordPress AMP plugin to consume.
-
-	Args:
-		out_dir: directory name of the output directory. Must not have slashes,
-			dots, etc.
-	"""
-	logging.info('entering ...')
-	assert re.match(r'^[a-zA-Z_\-0-9]+$', out_dir), 'bad out_dir: %s' % out_dir
-
-	allowed_tags, attr_lists, reference_points, versions = ParseRules(out_dir)
-
-	#Generate the output
-	out = []
-	GenerateHeaderPHP(out)
-	GenerateSpecVersionPHP(out, versions)
-	GenerateAllowedTagsPHP(out, allowed_tags)
-	GenerateLayoutAttributesPHP(out, attr_lists)
-	GenerateGlobalAttributesPHP(out, attr_lists)
-	GenerateReferencePointsPHP(out, reference_points)
-	GenerateFooterPHP(out)
-
-	# join out array into a single string and remove unneeded whitespace
-	output = re.sub("\\(\\s*\\)", "()", '\n'.join(out))
-
-	# replace 'True' with true and 'False' with false
-	output = re.sub("'True'", "true", output)
-	output = re.sub("'False'", "false", output)
-
-	# Write the php file to disk.
-	f = open('%s/class-amp-allowed-tags-generated.php' % out_dir, 'w')
-	# f.write('\n'.join(out))
-	f.write(output)
-	f.close()
-	logging.info('... done')
-
-
-def GenerateHeaderPHP(out):
-	logging.info('entering ...')
-
-	# Output the file's header
-	out.append('<?php')
-	out.append('/**')
-	out.append(' * Generated by %s - do not edit.' %
-						 os.path.basename(__file__))
-	out.append(' *')
-	out.append(' * This is a list of HTML tags and attributes that are allowed by the')
-	out.append(' * AMP specification. Note that tag names have been converted to lowercase.')
-	out.append(' *')
-	out.append(' * Note: This file only contains tags that are relevant to the `body` of')
-	out.append(' * an AMP page. To include additional elements modify the variable')
-	out.append(' * `mandatory_parent_blacklist` in the amp_wp_build.py script.')
-	out.append(' *')
-	out.append(' * phpcs:ignoreFile')
-	out.append(' */')
-	out.append('class AMP_Allowed_Tags_Generated {')
-	out.append('')
-	logging.info('... done')
-
-
-def GenerateSpecVersionPHP(out, versions):
-	logging.info('entering ...')
-
-	# Output the version of the spec file and matching validator version
-	if versions['spec_file_revision']:
-		out.append('\tprivate static $spec_file_revision = %d;' % versions['spec_file_revision'])
-	if versions['min_validator_revision_required']:
-		out.append('\tprivate static $minimum_validator_revision_required = %d;' % versions['min_validator_revision_required'])
-	logging.info('... done')
-
-
-def GenerateAllowedTagsPHP(out, allowed_tags):
-	logging.info('entering ...')
-
-  # Output the allowed tags dictionary along with each tag's allowed attributes
-	out.append('')
-	out.append('\tprivate static $allowed_tags = %s;' % Phpize( allowed_tags, 1 ).lstrip() )
-	logging.info('... done')
-
-
-def GenerateLayoutAttributesPHP(out, attr_lists):
-	logging.info('entering ...')
-
-	# Output the attribute list allowed for layouts.
-	out.append('')
-	out.append('\tprivate static $layout_allowed_attrs = %s;' % Phpize( attr_lists['$AMP_LAYOUT_ATTRS'], 1 ).lstrip() )
-	out.append('')
-	logging.info('... done')
-
-
-def GenerateGlobalAttributesPHP(out, attr_lists):
-	logging.info('entering ...')
-
-	# Output the globally allowed attribute list.
-	out.append('')
-	out.append('\tprivate static $globally_allowed_attrs = %s;' % Phpize( attr_lists['$GLOBAL_ATTRS'], 1 ).lstrip() )
-	out.append('')
-	logging.info('... done')
-
-def GenerateReferencePointsPHP(out, reference_points):
-	logging.info('entering ...')
-
-	# Output the reference points.
-	out.append('')
-	out.append('\tprivate static $reference_points = %s;' % Phpize( reference_points, 1 ).lstrip() )
-	out.append('')
-	logging.info('... done')
-
-def GenerateFooterPHP(out):
-	logging.info('entering ...')
-
-	# Output the footer.
-	out.append('''
-	/**
-	 * Get allowed tags.
-	 *
-	 * @since 0.5
-	 * @return array Allowed tags.
-	 */
-	public static function get_allowed_tags() {
-		return self::$allowed_tags;
-	}
-
-	/**
-	 * Get allowed tag.
-	 *
-	 * Get the rules for a single tag so that the entire data structure needn't be passed around.
-	 *
-	 * @since 0.7
-	 * @param string $node_name Tag name.
-	 * @return array|null Allowed tag, or null if the tag does not exist.
-	 */
-	public static function get_allowed_tag( $node_name ) {
-		if ( isset( self::$allowed_tags[ $node_name ] ) ) {
-			return self::$allowed_tags[ $node_name ];
-		}
-		return null;
-	}
-
-	/**
-	 * Get reference point spec.
-	 *
-	 * @since 1.0
-	 * @param string $tag_spec_name Tag spec name.
-	 * @return array|null Reference point spec, or null if does not exist.
-	 */
-	public static function get_reference_point_spec( $tag_spec_name ) {
-		if ( isset( self::$reference_points[ $tag_spec_name ] ) ) {
-			return self::$reference_points[ $tag_spec_name ];
-		}
-		return null;
-	}
-
-	/**
-	 * Get list of globally-allowed attributes.
-	 *
-	 * @since 0.5
-	 * @return array Allowed tag.
-	 */
-	public static function get_allowed_attributes() {
-		return self::$globally_allowed_attrs;
-	}
-
-	/**
-	 * Get layout attributes.
-	 *
-	 * @since 0.5
-	 * @return array Allowed tag.
-	 */
-	public static function get_layout_attributes() {
-		return self::$layout_allowed_attrs;
-	}''')
-
-	out.append('')
-
-	out.append('}')
-	out.append('')
-
-	logging.info('... done')
-
-
-def ParseRules(out_dir):
-	logging.info('entering ...')
-
-	# These imports happen late, within this method because they don't necessarily
-	# exist when the module starts running, and the ones that probably do
-	# are checked by CheckPrereqs.
-	from google.protobuf import text_format
-	from amp_wp import validator_pb2
-
-	allowed_tags = {}
-	attr_lists = {}
-	reference_points = {}
-	versions = {}
-
-	specfile='%s/validator.protoascii' % out_dir
-
-	validator_pb2=validator_pb2
-	text_format=text_format
-
-	# Merge specfile with message buffers.
-	rules = validator_pb2.ValidatorRules()
-	text_format.Merge(open(specfile).read(), rules)
-
-	# Record the version of this specfile and the corresponding validator version.
-	if rules.HasField('spec_file_revision'):
-		versions['spec_file_revision'] = rules.spec_file_revision
-
-	if rules.HasField('min_validator_revision_required'):
-		versions['min_validator_revision_required'] = rules.min_validator_revision_required
-
-	# Build a dictionary of the named attribute lists that are used by multiple tags.
-	for (field_desc, field_val) in rules.ListFields():
-		if 'attr_lists' == field_desc.name:
-			for attr_spec in field_val:
-				attr_lists[UnicodeEscape(attr_spec.name)] = GetAttrs(attr_spec.attrs)
-
-	# Build a dictionary of allowed tags and an associated list of their allowed
-	# attributes, values and other criteria.
-
-	# Don't include tags that have a mandatory parent with one of these tag names
-	# since we're only concerned with using this tag list to validate the HTML
-	# of the DOM
-	mandatory_parent_blacklist = [
-		'$ROOT',
-		'!DOCTYPE',
-	]
-
-	for (field_desc, field_val) in rules.ListFields():
-		if 'tags' == field_desc.name:
-			for tag_spec in field_val:
-
-				# Ignore tags that are outside of the body
-				if tag_spec.HasField('mandatory_parent') and tag_spec.mandatory_parent in mandatory_parent_blacklist and tag_spec.tag_name != 'HTML':
-					continue
-
-				# Ignore deprecated tags
-				if tag_spec.HasField('deprecation'):
-					continue
-
-				# Handle the special $REFERENCE_POINT tag
-				if '$REFERENCE_POINT' == tag_spec.tag_name:
-					reference_points[ tag_spec.spec_name ] = GetTagSpec(tag_spec, attr_lists)
-					continue
-
-				# If we made it here, then start adding the tag_spec
-				if tag_spec.tag_name.lower() not in allowed_tags:
-					tag_list = []
-				else:
-					tag_list = allowed_tags[UnicodeEscape(tag_spec.tag_name).lower()]
-				# AddTag(allowed_tags, tag_spec, attr_lists)
-
-				gotten_tag_spec = GetTagSpec(tag_spec, attr_lists)
-				if gotten_tag_spec is not None:
-					tag_list.append(gotten_tag_spec)
-					allowed_tags[UnicodeEscape(tag_spec.tag_name).lower()] = tag_list
-
-	logging.info('... done')
-	return allowed_tags, attr_lists, reference_points, versions
-
-
-def GetTagSpec(tag_spec, attr_lists):
-	logging.info('entering ...')
-
-	tag_dict = GetTagRules(tag_spec)
-	if tag_dict is None:
-		return None
-	attr_dict = GetAttrs(tag_spec.attrs)
-
-	# Now add attributes from any attribute lists to this tag.
-	for (tag_field_desc, tag_field_val) in tag_spec.ListFields():
-		if 'attr_lists' == tag_field_desc.name:
-			for attr_list in tag_field_val:
-				attr_dict.update(attr_lists[UnicodeEscape(attr_list)])
-
-	logging.info('... done')
-	tag_spec_dict = {'tag_spec':tag_dict, 'attr_spec_list':attr_dict}
-	if tag_spec.HasField('cdata'):
-		cdata_dict = {}
-		for (field_descriptor, field_value) in tag_spec.cdata.ListFields():
-			if isinstance(field_value, (unicode, str, bool, int)):
-				cdata_dict[ field_descriptor.name ] = field_value
-			elif hasattr( field_value, '_values' ):
-				cdata_dict[ field_descriptor.name ] = {}
-				for _value in field_value._values:
-					for (key,val) in _value.ListFields():
-						cdata_dict[ field_descriptor.name ][ key.name ] = val
-			elif 'css_spec' == field_descriptor.name:
-				css_spec = {}
-
-				css_spec['allowed_at_rules'] = []
-				for at_rule_spec in field_value.at_rule_spec:
-					if '$DEFAULT' == at_rule_spec.name:
-						continue
-					css_spec['allowed_at_rules'].append( at_rule_spec.name )
-
-				for css_spec_field_name in ( 'allowed_declarations', 'declaration', 'font_url_spec', 'image_url_spec', 'validate_keyframes' ):
-					if not hasattr( field_value, css_spec_field_name ):
-						continue
-					css_spec_field_value = getattr( field_value, css_spec_field_name )
-					if isinstance(css_spec_field_value, (list, collections.Sequence, google.protobuf.internal.containers.RepeatedScalarFieldContainer)):
-						css_spec[ css_spec_field_name ] = [ val for val in css_spec_field_value ]
-					elif hasattr( css_spec_field_value, 'ListFields' ):
-						css_spec[ css_spec_field_name ] = {}
-						for (css_spec_field_item_descriptor, css_spec_field_item_value) in getattr( field_value, css_spec_field_name ).ListFields():
-							if isinstance(css_spec_field_item_value, (list, collections.Sequence, google.protobuf.internal.containers.RepeatedScalarFieldContainer)):
-								css_spec[ css_spec_field_name ][ css_spec_field_item_descriptor.name ] = [ val for val in css_spec_field_item_value ]
-							else:
-								css_spec[ css_spec_field_name ][ css_spec_field_item_descriptor.name ] = css_spec_field_item_value
-					else:
-						css_spec[ css_spec_field_name ] = css_spec_field_value
-
-				cdata_dict['css_spec'] = css_spec
-		if len( cdata_dict ) > 0:
-			tag_spec_dict['cdata'] = cdata_dict
-
-	return tag_spec_dict
-
-
-def GetTagRules(tag_spec):
-	logging.info('entering ...')
-
-	tag_rules = {}
-
-	if hasattr(tag_spec, 'also_requires_tag') and tag_spec.also_requires_tag:
-		also_requires_tag_list = []
-		for also_requires_tag in tag_spec.also_requires_tag:
-			also_requires_tag_list.append(UnicodeEscape(also_requires_tag))
-		tag_rules['also_requires_tag'] = also_requires_tag_list
-
-	if hasattr(tag_spec, 'requires_extension') and len( tag_spec.requires_extension ) != 0:
-		requires_extension_list = []
-		for requires_extension in tag_spec.requires_extension:
-			requires_extension_list.append(requires_extension)
-		tag_rules['requires_extension'] = requires_extension_list
-
-	if hasattr(tag_spec, 'reference_points') and len( tag_spec.reference_points ) != 0:
-		tag_reference_points = {}
-		for reference_point_spec in tag_spec.reference_points:
-			tag_reference_points[ reference_point_spec.tag_spec_name ] = {
-				"mandatory": reference_point_spec.mandatory,
-				"unique": reference_point_spec.unique
-			}
-		if len( tag_reference_points ) > 0:
-			tag_rules['reference_points'] = tag_reference_points
-
-	if hasattr(tag_spec, 'also_requires_tag_warning') and len( tag_spec.also_requires_tag_warning ) != 0:
-		also_requires_tag_warning_list = []
-		for also_requires_tag_warning in tag_spec.also_requires_tag_warning:
-			also_requires_tag_warning_list.append(also_requires_tag_warning)
-		tag_rules['also_requires_tag_warning'] = also_requires_tag_warning_list
-
-	if tag_spec.disallowed_ancestor:
-		disallowed_ancestor_list = []
-		for disallowed_ancestor in tag_spec.disallowed_ancestor:
-			disallowed_ancestor_list.append(UnicodeEscape(disallowed_ancestor).lower())
-		tag_rules['disallowed_ancestor'] = disallowed_ancestor_list
-
-	if tag_spec.html_format:
-		html_format_list = []
-		has_amp_format = False
-		for html_format in tag_spec.html_format:
-			if 1 == html_format:
-				has_amp_format = True
-		if not has_amp_format:
-			return None
-
-	if tag_spec.HasField('extension_spec'):
-		extension_spec = {}
-		for field in tag_spec.extension_spec.ListFields():
-			if isinstance(field[1], (list, google.protobuf.internal.containers.RepeatedScalarFieldContainer)):
-				extension_spec[ field[0].name ] = []
-				for val in field[1]:
-					extension_spec[ field[0].name ].append( val )
-			else:
-				extension_spec[ field[0].name ] = field[1]
-		tag_rules['extension_spec'] = extension_spec
-
-	if tag_spec.HasField('mandatory'):
-		tag_rules['mandatory'] = tag_spec.mandatory
-
-	if tag_spec.HasField('mandatory_alternatives'):
-		tag_rules['mandatory_alternatives'] = UnicodeEscape(tag_spec.mandatory_alternatives)
-
-	if tag_spec.HasField('mandatory_ancestor'):
-		tag_rules['mandatory_ancestor'] = UnicodeEscape(tag_spec.mandatory_ancestor).lower()
-
-	if tag_spec.HasField('mandatory_ancestor_suggested_alternative'):
-		tag_rules['mandatory_ancestor_suggested_alternative'] = UnicodeEscape(tag_spec.mandatory_ancestor_suggested_alternative).lower()
-
-	if tag_spec.HasField('mandatory_parent'):
-		tag_rules['mandatory_parent'] = UnicodeEscape(tag_spec.mandatory_parent).lower()
-
-	if tag_spec.HasField('spec_name'):
-		tag_rules['spec_name'] = UnicodeEscape(tag_spec.spec_name)
-
-	if tag_spec.HasField('spec_url'):
-		tag_rules['spec_url'] = UnicodeEscape(tag_spec.spec_url)
-
-	if tag_spec.HasField('unique'):
-		tag_rules['unique'] = tag_spec.unique
-
-	if tag_spec.HasField('unique_warning'):
-		tag_rules['unique_warning'] = tag_spec.unique_warning
-
-	if tag_spec.HasField('amp_layout'):
-		amp_layout = {}
-		for field in tag_spec.amp_layout.ListFields():
-			if 'supported_layouts' == field[0].name:
-				amp_layout['supported_layouts'] = [ val for val in field[1] ]
-			else:
-				amp_layout[ field[0].name ] = field[1]
-		tag_rules['amp_layout'] = amp_layout
-
-	logging.info('... done')
-	return tag_rules
-
-
-def GetAttrs(attrs):
-	logging.info('entering ...')
-
-	attr_dict = {}
-	for attr_spec in attrs:
-
-		value_dict = GetValues(attr_spec)
-
-		# Add attribute name and alternative_names
-		attr_dict[UnicodeEscape(attr_spec.name)] = value_dict
-
-	logging.info('... done')
-	return attr_dict
-
-
-def GetValues(attr_spec):
-	logging.info('entering ...')
-
-	value_dict = {}
-
-	# Add alternative names
-	if attr_spec.alternative_names:
-		alt_names_list = []
-		for alternative_name in attr_spec.alternative_names:
-			alt_names_list.append(UnicodeEscape(alternative_name))
-		value_dict['alternative_names'] = alt_names_list
-
-	# Add blacklisted value regex
-	if attr_spec.HasField('blacklisted_value_regex'):
-		value_dict['blacklisted_value_regex'] = attr_spec.blacklisted_value_regex
-
-	# dispatch_key is an int
-	if attr_spec.HasField('dispatch_key'):
-		value_dict['dispatch_key'] = attr_spec.dispatch_key
-
-	# mandatory is a boolean
-	if attr_spec.HasField('mandatory'):
-		value_dict['mandatory'] = attr_spec.mandatory
-
-	# Add allowed value
-	if attr_spec.value:
-		value_dict['value'] = list( attr_spec.value )
-
-	# value_casei
-	if attr_spec.value_casei:
-		value_dict['value_casei'] = list( attr_spec.value_casei )
-
-	# value_regex
-	if attr_spec.HasField('value_regex'):
-		value_dict['value_regex'] = attr_spec.value_regex
-
-	# value_regex_casei
-	if attr_spec.HasField('value_regex_casei'):
-		value_dict['value_regex_casei'] = attr_spec.value_regex_casei
-
-	#value_properties is a dictionary of dictionaries
-	if attr_spec.HasField('value_properties'):
-		value_properties_dict = {}
-		for (value_properties_key, value_properties_val) in attr_spec.value_properties.ListFields():
-			for value_property in value_properties_val:
-				property_dict = {}
-				# print 'value_property.name: %s' % value_property.name
-				for (key,val) in value_property.ListFields():
-					if val != value_property.name:
-						if isinstance(val, unicode):
-							val = UnicodeEscape(val)
-						property_dict[UnicodeEscape(key.name)] = val
-				value_properties_dict[UnicodeEscape(value_property.name)] = property_dict
-		value_dict['value_properties'] = value_properties_dict
-
-	# value_url is a dictionary
-	if attr_spec.HasField('value_url'):
-		value_url_dict = {}
-		for (value_url_key, value_url_val) in attr_spec.value_url.ListFields():
-			if isinstance(value_url_val, (list, collections.Sequence, google.protobuf.internal.containers.RepeatedScalarFieldContainer)):
-				value_url_val_val = []
-				for val in value_url_val:
-					value_url_val_val.append(UnicodeEscape(val))
-			else:
-				value_url_val_val = value_url_val
-			value_url_dict[value_url_key.name] = value_url_val_val
-		value_dict['value_url'] = value_url_dict
-
-	logging.info('... done')
-	return value_dict
-
-
-def UnicodeEscape(string):
-	"""Helper function which escapes unicode characters.
-
-	Args:
-		string: A string which may contain unicode characters.
-	Returns:
-		An escaped string.
-	"""
-	return ('' + string).encode('unicode-escape')
-
-def Phpize(data, indent=0):
-	"""Helper function to convert JSON-serializable data into PHP literals.
-
-	Args:
-		data: Any JSON-serializable.
-	Returns:
-		String formatted as PHP literal.
-	"""
-	json_string = json.dumps(data, sort_keys=True, ensure_ascii=False)
-
-	pipe = subprocess.Popen(['php', '-r', 'var_export( json_decode( file_get_contents( "php://stdin" ), true ) );'], stdout=subprocess.PIPE, stdin=subprocess.PIPE, stderr=subprocess.STDOUT)
-	php_stdout = pipe.communicate(input=json_string)[0]
-	php_exported = php_stdout.decode()
-
-	# Clean up formatting.
-	# TODO: Just use PHPCBF for this.
-	php_exported = re.sub( r'^ +', lambda match: ( len(match.group(0))/2 ) * '\t', php_exported, flags=re.MULTILINE )
-	php_exported = php_exported.replace( 'array (', 'array(' )
-	php_exported = re.sub( r' => \n\s+', ' => ', php_exported, flags=re.MULTILINE )
-	php_exported = re.sub( r'^(\s+)\d+ =>\s*', r'\1', php_exported, flags=re.MULTILINE )
-
-	# Add additional indents.
-	if indent > 0:
-		php_exported = re.sub( r'^', '\t' * indent, php_exported, flags=re.MULTILINE )
-	return php_exported
-
-def Main():
-	"""The main method, which executes all build steps and runs the tests."""
-	logging.basicConfig(
-			format='[[%(filename)s %(funcName)s]] - %(message)s', level=logging.INFO)
-
-	out_dir = 'amp_wp'
-
-	SetupOutDir(out_dir)
-	GenValidatorProtoascii(out_dir)
-	GenValidatorPb2Py(out_dir)
-	GenValidatorProtoascii(out_dir)
-	GeneratePHP(out_dir)
-
-if __name__ == '__main__':
-	Main()
diff --git a/bin/amphtml-update.sh b/bin/amphtml-update.sh
deleted file mode 100644
index 653ceed52ba..00000000000
--- a/bin/amphtml-update.sh
+++ /dev/null
@@ -1,47 +0,0 @@
-#!/bin/bash
-set -e
-
-# Go to the right location.
-cd "$(dirname "$0")"
-
-BIN_PATH="$(pwd)"
-PROJECT_PATH=$(dirname $PWD)
-VENDOR_PATH=$PROJECT_PATH/vendor
-
-if ! command -v apt-get >/dev/null 2>&1; then
-	echo "The AMP HTML uses apt-get, make sure to run this script in a Linux environment"
-	exit 1
-fi
-
-# Install dependencies.
-sudo apt-get install git python protobuf-compiler python-protobuf
-
-# Create and go to vendor.
-if [[ ! -e $VENDOR_PATH ]]; then
-	mkdir $VENDOR_PATH
-fi
-cd $VENDOR_PATH
-
-# Clone amphtml repo.
-if [[ ! -e $VENDOR_PATH/amphtml ]]; then
-	git clone https://github.com/ampproject/amphtml amphtml
-else
-	cd $VENDOR_PATH/amphtml/validator
-	git fetch --tags
-fi
-
-# Check out the latest tag.
-cd $VENDOR_PATH/amphtml
-LATEST_TAG=$( git describe --abbrev=0 --tags )
-git checkout $LATEST_TAG
-
-# Copy script to location and go there.
-cp $BIN_PATH/amphtml-update.py $VENDOR_PATH/amphtml/validator
-cd $VENDOR_PATH/amphtml/validator
-
-# Run script.
-python amphtml-update.py
-mv amp_wp/class-amp-allowed-tags-generated.php ../../../includes/sanitizers/
-rm -r amp_wp
-
-echo "Generated from tag $LATEST_TAG"
diff --git a/bin/install-wp-tests.sh b/bin/install-wp-tests.sh
index 9f009876bfb..1a6c88a5a0a 100755
--- a/bin/install-wp-tests.sh
+++ b/bin/install-wp-tests.sh
@@ -104,7 +104,8 @@ install_db() {
 	fi
 
 	# create database
-	mysqladmin create $DB_NAME --user="$DB_USER" --password="$DB_PASS"$EXTRA
+	mysql --user="$DB_USER" --password="$DB_PASS"$EXTRA -e"DROP DATABASE IF EXISTS $DB_NAME"
+	mysql --user="$DB_USER" --password="$DB_PASS"$EXTRA -e"create DATABASE $DB_NAME"
 }
 
 install_wp
diff --git a/composer.json b/composer.json
index c13e765d545..71093e96bc3 100644
--- a/composer.json
+++ b/composer.json
@@ -4,15 +4,24 @@
     "homepage": "https://github.com/Automattic/amp-wp",
     "type": "wordpress-plugin",
     "license": "GPL-2.0",
+    "minimum-stability": "dev",
+    "prefer-stable": true,
     "repositories": [
         {
             "type": "vcs",
             "url": "https://github.com/xwp/PHP-CSS-Parser"
+        },
+        {
+            "type": "vcs",
+            "url": "git@github.com:dennisinteractive/amp-library.git"
         }
     ],
     "require": {
         "php": "^5.3.6 || ^7.0",
-        "sabberworm/php-css-parser": "dev-master"
+        "sabberworm/php-css-parser": "dev-master as 8.0.0",
+        "xwp/wp-dev-lib": "dev-master",
+        "lullabot/amp": "dev-amphtml-generator",
+        "symfony/console": "^3.4"
     },
     "require-dev": {
         "wp-coding-standards/wpcs": "^0.14.0",
diff --git a/composer.lock b/composer.lock
deleted file mode 100644
index 382e098823c..00000000000
--- a/composer.lock
+++ /dev/null
@@ -1,281 +0,0 @@
-{
-    "_readme": [
-        "This file locks the dependencies of your project to a known state",
-        "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#composer-lock-the-lock-file",
-        "This file is @generated automatically"
-    ],
-    "content-hash": "33d4c9d9bf48285e6557d79a6b4b7601",
-    "packages": [
-        {
-            "name": "sabberworm/php-css-parser",
-            "version": "dev-master",
-            "source": {
-                "type": "git",
-                "url": "https://github.com/xwp/PHP-CSS-Parser.git",
-                "reference": "22311fa3d67217c5fcd0b839670be39a768eda7b"
-            },
-            "dist": {
-                "type": "zip",
-                "url": "https://api.github.com/repos/xwp/PHP-CSS-Parser/zipball/22311fa3d67217c5fcd0b839670be39a768eda7b",
-                "reference": "22311fa3d67217c5fcd0b839670be39a768eda7b",
-                "shasum": ""
-            },
-            "require": {
-                "php": ">=5.3.2"
-            },
-            "require-dev": {
-                "phpunit/phpunit": "~4.8"
-            },
-            "type": "library",
-            "autoload": {
-                "psr-0": {
-                    "Sabberworm\\CSS": "lib/"
-                }
-            },
-            "license": [
-                "MIT"
-            ],
-            "authors": [
-                {
-                    "name": "Raphael Schweikert"
-                }
-            ],
-            "description": "Parser for CSS Files written in PHP",
-            "homepage": "http://www.sabberworm.com/blog/2010/6/10/php-css-parser",
-            "keywords": [
-                "css",
-                "parser",
-                "stylesheet"
-            ],
-            "support": {
-                "source": "https://github.com/xwp/PHP-CSS-Parser/tree/master"
-            },
-            "time": "2018-11-25 04:50:29"
-        }
-    ],
-    "packages-dev": [
-        {
-            "name": "dealerdirect/phpcodesniffer-composer-installer",
-            "version": "v0.4.4",
-            "source": {
-                "type": "git",
-                "url": "https://github.com/Dealerdirect/phpcodesniffer-composer-installer.git",
-                "reference": "2e41850d5f7797cbb1af7b030d245b3b24e63a08"
-            },
-            "dist": {
-                "type": "zip",
-                "url": "https://api.github.com/repos/Dealerdirect/phpcodesniffer-composer-installer/zipball/2e41850d5f7797cbb1af7b030d245b3b24e63a08",
-                "reference": "2e41850d5f7797cbb1af7b030d245b3b24e63a08",
-                "shasum": ""
-            },
-            "require": {
-                "composer-plugin-api": "^1.0",
-                "php": "^5.3|^7",
-                "squizlabs/php_codesniffer": "*"
-            },
-            "require-dev": {
-                "composer/composer": "*",
-                "wimg/php-compatibility": "^8.0"
-            },
-            "suggest": {
-                "dealerdirect/qa-tools": "All the PHP QA tools you'll need"
-            },
-            "type": "composer-plugin",
-            "extra": {
-                "class": "Dealerdirect\\Composer\\Plugin\\Installers\\PHPCodeSniffer\\Plugin"
-            },
-            "autoload": {
-                "psr-4": {
-                    "Dealerdirect\\Composer\\Plugin\\Installers\\PHPCodeSniffer\\": "src/"
-                }
-            },
-            "notification-url": "https://packagist.org/downloads/",
-            "license": [
-                "MIT"
-            ],
-            "authors": [
-                {
-                    "name": "Franck Nijhof",
-                    "email": "f.nijhof@dealerdirect.nl",
-                    "homepage": "http://workingatdealerdirect.eu",
-                    "role": "Developer"
-                }
-            ],
-            "description": "PHP_CodeSniffer Standards Composer Installer Plugin",
-            "homepage": "http://workingatdealerdirect.eu",
-            "keywords": [
-                "PHPCodeSniffer",
-                "PHP_CodeSniffer",
-                "code quality",
-                "codesniffer",
-                "composer",
-                "installer",
-                "phpcs",
-                "plugin",
-                "qa",
-                "quality",
-                "standard",
-                "standards",
-                "style guide",
-                "stylecheck",
-                "tests"
-            ],
-            "time": "2017-12-06T16:27:17+00:00"
-        },
-        {
-            "name": "squizlabs/php_codesniffer",
-            "version": "3.3.2",
-            "source": {
-                "type": "git",
-                "url": "https://github.com/squizlabs/PHP_CodeSniffer.git",
-                "reference": "6ad28354c04b364c3c71a34e4a18b629cc3b231e"
-            },
-            "dist": {
-                "type": "zip",
-                "url": "https://api.github.com/repos/squizlabs/PHP_CodeSniffer/zipball/6ad28354c04b364c3c71a34e4a18b629cc3b231e",
-                "reference": "6ad28354c04b364c3c71a34e4a18b629cc3b231e",
-                "shasum": ""
-            },
-            "require": {
-                "ext-simplexml": "*",
-                "ext-tokenizer": "*",
-                "ext-xmlwriter": "*",
-                "php": ">=5.4.0"
-            },
-            "require-dev": {
-                "phpunit/phpunit": "^4.0 || ^5.0 || ^6.0 || ^7.0"
-            },
-            "bin": [
-                "bin/phpcs",
-                "bin/phpcbf"
-            ],
-            "type": "library",
-            "extra": {
-                "branch-alias": {
-                    "dev-master": "3.x-dev"
-                }
-            },
-            "notification-url": "https://packagist.org/downloads/",
-            "license": [
-                "BSD-3-Clause"
-            ],
-            "authors": [
-                {
-                    "name": "Greg Sherwood",
-                    "role": "lead"
-                }
-            ],
-            "description": "PHP_CodeSniffer tokenizes PHP, JavaScript and CSS files and detects violations of a defined set of coding standards.",
-            "homepage": "http://www.squizlabs.com/php-codesniffer",
-            "keywords": [
-                "phpcs",
-                "standards"
-            ],
-            "time": "2018-09-23T23:08:17+00:00"
-        },
-        {
-            "name": "wimg/php-compatibility",
-            "version": "8.2.0",
-            "source": {
-                "type": "git",
-                "url": "https://github.com/PHPCompatibility/PHPCompatibility.git",
-                "reference": "eaf613c1a8265bcfd7b0ab690783f2aef519f78a"
-            },
-            "dist": {
-                "type": "zip",
-                "url": "https://api.github.com/repos/PHPCompatibility/PHPCompatibility/zipball/eaf613c1a8265bcfd7b0ab690783f2aef519f78a",
-                "reference": "eaf613c1a8265bcfd7b0ab690783f2aef519f78a",
-                "shasum": ""
-            },
-            "require": {
-                "php": ">=5.3",
-                "squizlabs/php_codesniffer": "^2.3 || ^3.0.2"
-            },
-            "conflict": {
-                "squizlabs/php_codesniffer": "2.6.2"
-            },
-            "require-dev": {
-                "phpunit/phpunit": "~4.5 || ^5.0 || ^6.0 || ^7.0"
-            },
-            "suggest": {
-                "dealerdirect/phpcodesniffer-composer-installer": "^0.4.3 || This Composer plugin will sort out the PHPCS 'installed_paths' automatically.",
-                "roave/security-advisories": "dev-master || Helps prevent installing dependencies with known security issues."
-            },
-            "type": "phpcodesniffer-standard",
-            "autoload": {
-                "psr-4": {
-                    "PHPCompatibility\\": "PHPCompatibility/"
-                }
-            },
-            "notification-url": "https://packagist.org/downloads/",
-            "license": [
-                "LGPL-3.0-or-later"
-            ],
-            "authors": [
-                {
-                    "name": "Wim Godden",
-                    "role": "lead"
-                }
-            ],
-            "description": "A set of sniffs for PHP_CodeSniffer that checks for PHP version compatibility.",
-            "homepage": "http://techblog.wimgodden.be/tag/codesniffer/",
-            "keywords": [
-                "compatibility",
-                "phpcs",
-                "standards"
-            ],
-            "time": "2018-07-17T13:42:26+00:00"
-        },
-        {
-            "name": "wp-coding-standards/wpcs",
-            "version": "0.14.1",
-            "source": {
-                "type": "git",
-                "url": "https://github.com/WordPress-Coding-Standards/WordPress-Coding-Standards.git",
-                "reference": "cf6b310caad735816caef7573295f8a534374706"
-            },
-            "dist": {
-                "type": "zip",
-                "url": "https://api.github.com/repos/WordPress-Coding-Standards/WordPress-Coding-Standards/zipball/cf6b310caad735816caef7573295f8a534374706",
-                "reference": "cf6b310caad735816caef7573295f8a534374706",
-                "shasum": ""
-            },
-            "require": {
-                "php": ">=5.3",
-                "squizlabs/php_codesniffer": "^2.9.0 || ^3.0.2"
-            },
-            "suggest": {
-                "dealerdirect/phpcodesniffer-composer-installer": "^0.4.3"
-            },
-            "type": "phpcodesniffer-standard",
-            "notification-url": "https://packagist.org/downloads/",
-            "license": [
-                "MIT"
-            ],
-            "authors": [
-                {
-                    "name": "Contributors",
-                    "homepage": "https://github.com/WordPress-Coding-Standards/WordPress-Coding-Standards/graphs/contributors"
-                }
-            ],
-            "description": "PHP_CodeSniffer rules (sniffs) to enforce WordPress coding conventions",
-            "keywords": [
-                "phpcs",
-                "standards",
-                "wordpress"
-            ],
-            "time": "2018-02-16T01:57:48+00:00"
-        }
-    ],
-    "aliases": [],
-    "minimum-stability": "stable",
-    "stability-flags": {
-        "sabberworm/php-css-parser": 20
-    },
-    "prefer-stable": false,
-    "prefer-lowest": false,
-    "platform": {
-        "php": "^5.3.6 || ^7.0"
-    },
-    "platform-dev": []
-}
diff --git a/contributing.md b/contributing.md
index 95c5e419e5b..e24cf27af32 100644
--- a/contributing.md
+++ b/contributing.md
@@ -5,14 +5,19 @@ Thanks for taking the time to contribute!
 To start, clone this repository into your WordPress install being used for development:
 
 ```bash
-cd wp-content/plugins && git clone --recursive git@github.com:Automattic/amp-wp.git amp
+cd wp-content/plugins && git clone git@github.com:Automattic/amp-wp.git amp
 ```
 
-If you happened to have cloned without `--recursive` previously, please do `git submodule update --init` to ensure the [dev-lib](https://github.com/xwp/wp-dev-lib/) submodule is available for development.
+### Build dependencies with [Composer](https://getcomposer.org)
 
-Lastly, to get the plugin running in your WordPress install, run `composer install` and then activate the plugin via the WordPress dashboard or `wp plugin activate amp`.
+```bash
+cd amp
+composer install
+```
+
+Lastly, activate the plugin via the WordPress dashboard or `wp plugin activate amp`.
 
-To install the `pre-commit` hook, do `bash dev-lib/install-pre-commit-hook.sh`.
+To install the `pre-commit` hook, do `bash vendor/xwp/wp-dev-lib/install-pre-commit-hook.sh`.
 
 Note that pull requests will be checked against [WordPress-Coding-Standards](https://github.com/WordPress-Coding-Standards/WordPress-Coding-Standards) with PHPCS, and for JavaScript linting is done with ESLint and (for now) JSCS and JSHint.
 
diff --git a/dev-lib b/dev-lib
deleted file mode 160000
index e5c56ae4401..00000000000
--- a/dev-lib
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit e5c56ae44013f5f056ba97f35bd060a2b49e12f3
diff --git a/includes/class-amp-autoloader.php b/includes/class-amp-autoloader.php
index 2d3c8725742..a93305d01e9 100644
--- a/includes/class-amp-autoloader.php
+++ b/includes/class-amp-autoloader.php
@@ -71,7 +71,7 @@ class AMP_Autoloader {
 		'AMP_Analytics_Options_Submenu_Page'          => 'includes/options/views/class-amp-analytics-options-submenu-page',
 		'AMP_Options_Menu_Page'                       => 'includes/options/views/class-amp-options-menu-page',
 		'AMP_Rule_Spec'                               => 'includes/sanitizers/class-amp-rule-spec',
-		'AMP_Allowed_Tags_Generated'                  => 'includes/sanitizers/class-amp-allowed-tags-generated',
+//		'AMP_Allowed_Tags_Generated'                  => 'includes/sanitizers/class-amp-allowed-tags-generated',
 		'AMP_Audio_Sanitizer'                         => 'includes/sanitizers/class-amp-audio-sanitizer',
 		'AMP_Base_Sanitizer'                          => 'includes/sanitizers/class-amp-base-sanitizer',
 		'AMP_Blacklist_Sanitizer'                     => 'includes/sanitizers/class-amp-blacklist-sanitizer',
diff --git a/includes/sanitizers/class-amp-allowed-tags-generated.php b/includes/sanitizers/class-amp-allowed-tags-generated.php
deleted file mode 100644
index 7d85042a281..00000000000
--- a/includes/sanitizers/class-amp-allowed-tags-generated.php
+++ /dev/null
@@ -1,14556 +0,0 @@
-<?php
-/**
- * Generated by amphtml-update.py - do not edit.
- *
- * This is a list of HTML tags and attributes that are allowed by the
- * AMP specification. Note that tag names have been converted to lowercase.
- *
- * Note: This file only contains tags that are relevant to the `body` of
- * an AMP page. To include additional elements modify the variable
- * `mandatory_parent_blacklist` in the amp_wp_build.py script.
- *
- * phpcs:ignoreFile
- */
-class AMP_Allowed_Tags_Generated {
-
-	private static $spec_file_revision = 757;
-	private static $minimum_validator_revision_required = 348;
-
-	private static $allowed_tags = array(
-		'a' => array(
-			array(
-				'attr_spec_list' => array(
-					'[href]' => array(),
-					'border' => array(),
-					'download' => array(),
-					'href' => array(
-						'blacklisted_value_regex' => '__amp_source_origin',
-						'value_url' => array(
-							'allow_empty' => true,
-							'protocol' => array(
-								'ftp',
-								'geo',
-								'http',
-								'https',
-								'mailto',
-								'maps',
-								'bip',
-								'bbmi',
-								'fb-messenger',
-								'intent',
-								'line',
-								'skype',
-								'sms',
-								'snapchat',
-								'tel',
-								'tg',
-								'threema',
-								'twitter',
-								'viber',
-								'webcal',
-								'web+mastodon',
-								'whatsapp',
-							),
-						),
-					),
-					'hreflang' => array(),
-					'media' => array(),
-					'name' => array(),
-					'referrerpolicy' => array(),
-					'rel' => array(
-						'blacklisted_value_regex' => '(^|\\s)(components|dns-prefetch|import|manifest|preconnect|prefetch|preload|prerender|serviceworker|stylesheet|subresource|)(\\s|$)',
-					),
-					'role' => array(),
-					'tabindex' => array(),
-					'target' => array(
-						'value' => array(
-							'_blank',
-							'_self',
-							'_top',
-						),
-					),
-					'type' => array(
-						'value_casei' => array(
-							'text/html',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'spec_url' => 'https://www.ampproject.org/docs/reference/spec#links',
-				),
-			),
-		),
-		'abbr' => array(
-			array(
-				'attr_spec_list' => array(),
-				'tag_spec' => array(),
-			),
-		),
-		'acronym' => array(
-			array(
-				'attr_spec_list' => array(),
-				'tag_spec' => array(),
-			),
-		),
-		'address' => array(
-			array(
-				'attr_spec_list' => array(),
-				'tag_spec' => array(),
-			),
-		),
-		'amp-3d-gltf' => array(
-			array(
-				'attr_spec_list' => array(
-					'alpha' => array(
-						'value' => array(
-							'false',
-							'true',
-						),
-					),
-					'antialiasing' => array(
-						'value' => array(
-							'false',
-							'true',
-						),
-					),
-					'autorotate' => array(
-						'value' => array(
-							'false',
-							'true',
-						),
-					),
-					'clearcolor' => array(),
-					'enablezoom' => array(
-						'value' => array(
-							'false',
-							'true',
-						),
-					),
-					'maxpixelratio' => array(
-						'value_regex' => '[+-]?(\\d*\\.)?\\d+',
-					),
-					'media' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'src' => array(
-						'mandatory' => true,
-						'value_url' => array(
-							'protocol' => array(
-								'https',
-							),
-						),
-					),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							6,
-							2,
-							3,
-							7,
-							4,
-						),
-					),
-					'requires_extension' => array(
-						'amp-3d-gltf',
-					),
-				),
-			),
-		),
-		'amp-3q-player' => array(
-			array(
-				'attr_spec_list' => array(
-					'autoplay' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'data-id' => array(
-						'mandatory' => true,
-					),
-					'media' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							6,
-							2,
-							7,
-							4,
-						),
-					),
-					'requires_extension' => array(
-						'amp-3q-player',
-					),
-				),
-			),
-		),
-		'amp-accordion' => array(
-			array(
-				'attr_spec_list' => array(
-					'animate' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'disable-session-states' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'expand-single-section' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'media' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							5,
-						),
-					),
-					'requires_extension' => array(
-						'amp-accordion',
-					),
-					'spec_url' => 'https://www.ampproject.org/docs/reference/components/amp-accordion',
-				),
-			),
-		),
-		'amp-ad' => array(
-			array(
-				'attr_spec_list' => array(
-					'alt' => array(),
-					'json' => array(),
-					'media' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'rtc-config' => array(),
-					'src' => array(
-						'blacklisted_value_regex' => '__amp_source_origin',
-						'value_url' => array(
-							'allow_relative' => true,
-							'protocol' => array(
-								'https',
-							),
-						),
-					),
-					'template' => array(),
-					'type' => array(
-						'mandatory' => true,
-					),
-				),
-				'tag_spec' => array(
-					'also_requires_tag_warning' => array(
-						'amp-ad extension .js script',
-					),
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							6,
-							2,
-							3,
-							7,
-							8,
-							9,
-							1,
-							4,
-						),
-					),
-					'disallowed_ancestor' => array(
-						'amp-app-banner',
-					),
-					'requires_extension' => array(
-						'amp-ad',
-					),
-					'spec_url' => 'https://www.ampproject.org/docs/reference/components/amp-ad',
-				),
-			),
-			array(
-				'attr_spec_list' => array(
-					'alt' => array(),
-					'data-multi-size' => array(
-						'dispatch_key' => 2,
-						'mandatory' => true,
-						'value' => array(
-							'',
-						),
-					),
-					'json' => array(),
-					'media' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'rtc-config' => array(),
-					'src' => array(
-						'blacklisted_value_regex' => '__amp_source_origin',
-						'value_url' => array(
-							'allow_relative' => true,
-							'protocol' => array(
-								'https',
-							),
-						),
-					),
-					'type' => array(
-						'mandatory' => true,
-					),
-				),
-				'tag_spec' => array(
-					'also_requires_tag_warning' => array(
-						'amp-ad extension .js script',
-					),
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							6,
-							2,
-							3,
-							7,
-							8,
-							9,
-							1,
-							4,
-						),
-					),
-					'disallowed_ancestor' => array(
-						'amp-app-banner',
-						'amp-carousel',
-						'amp-fx-flying-carpet',
-						'amp-lightbox',
-						'amp-sticky-ad',
-					),
-					'requires_extension' => array(
-						'amp-ad',
-					),
-					'spec_name' => 'amp-ad with data-multi-size attribute',
-					'spec_url' => 'https://www.ampproject.org/docs/reference/components/amp-ad',
-				),
-			),
-			array(
-				'attr_spec_list' => array(
-					'alt' => array(),
-					'data-enable-refresh' => array(
-						'dispatch_key' => 2,
-						'mandatory' => true,
-						'value' => array(
-							'',
-						),
-					),
-					'json' => array(),
-					'media' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'src' => array(
-						'blacklisted_value_regex' => '__amp_source_origin',
-						'value_url' => array(
-							'allow_relative' => true,
-							'protocol' => array(
-								'https',
-							),
-						),
-					),
-					'type' => array(
-						'mandatory' => true,
-					),
-				),
-				'tag_spec' => array(
-					'also_requires_tag_warning' => array(
-						'amp-ad extension .js script',
-					),
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							6,
-							2,
-							3,
-							7,
-							8,
-							9,
-							1,
-							4,
-						),
-					),
-					'disallowed_ancestor' => array(
-						'amp-app-banner',
-						'amp-fx-flying-carpet',
-						'amp-lightbox',
-					),
-					'requires_extension' => array(
-						'amp-ad',
-					),
-					'spec_name' => 'amp-ad with data-enable-refresh attribute',
-					'spec_url' => 'https://www.ampproject.org/docs/reference/components/amp-ad',
-				),
-			),
-		),
-		'amp-addthis' => array(
-			array(
-				'attr_spec_list' => array(
-					'data-pub-id' => array(
-						'mandatory' => true,
-					),
-					'data-share-media' => array(
-						'value_url' => array(
-							'allow_empty' => true,
-							'protocol' => array(
-								'http',
-								'https',
-							),
-						),
-					),
-					'data-share-url' => array(
-						'value_url' => array(
-							'allow_empty' => true,
-							'protocol' => array(
-								'http',
-								'https',
-							),
-						),
-					),
-					'data-widget-id' => array(
-						'mandatory' => true,
-					),
-					'media' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							6,
-							2,
-							3,
-							7,
-							1,
-							4,
-						),
-					),
-					'requires_extension' => array(
-						'amp-addthis',
-					),
-				),
-			),
-		),
-		'amp-analytics' => array(
-			array(
-				'attr_spec_list' => array(
-					'config' => array(
-						'blacklisted_value_regex' => '__amp_source_origin',
-						'value_url' => array(
-							'allow_empty' => true,
-							'allow_relative' => true,
-							'protocol' => array(
-								'https',
-							),
-						),
-					),
-					'type' => array(),
-				),
-				'tag_spec' => array(
-					'requires_extension' => array(
-						'amp-analytics',
-					),
-					'spec_url' => 'https://www.ampproject.org/docs/reference/components/amp-analytics',
-				),
-			),
-		),
-		'amp-anim' => array(
-			array(
-				'attr_spec_list' => array(
-					'alt' => array(),
-					'attribution' => array(),
-					'media' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'src' => array(
-						'alternative_names' => array(
-							'srcset',
-						),
-						'blacklisted_value_regex' => '__amp_source_origin',
-						'mandatory' => true,
-						'value_url' => array(
-							'protocol' => array(
-								'data',
-								'http',
-								'https',
-							),
-						),
-					),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							6,
-							2,
-							3,
-							7,
-							9,
-							1,
-							4,
-						),
-					),
-					'requires_extension' => array(
-						'amp-anim',
-					),
-					'spec_url' => 'https://www.ampproject.org/docs/reference/components/amp-anim',
-				),
-			),
-		),
-		'amp-animation' => array(
-			array(
-				'attr_spec_list' => array(
-					'media' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'trigger' => array(
-						'value' => array(
-							'visibility',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							1,
-						),
-					),
-					'requires_extension' => array(
-						'amp-animation',
-					),
-				),
-			),
-		),
-		'amp-apester-media' => array(
-			array(
-				'attr_spec_list' => array(
-					'data-apester-channel-token' => array(
-						'value_regex' => '[0-9a-zA-Z]+',
-					),
-					'data-apester-media-id' => array(
-						'value_regex' => '[0-9a-zA-Z]+',
-					),
-					'media' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							6,
-							2,
-							3,
-							7,
-							1,
-							4,
-						),
-					),
-					'requires_extension' => array(
-						'amp-apester-media',
-					),
-					'spec_url' => 'https://www.ampproject.org/docs/reference/components/amp-apester-media',
-				),
-			),
-		),
-		'amp-app-banner' => array(
-			array(
-				'attr_spec_list' => array(
-					'id' => array(
-						'mandatory' => true,
-					),
-					'media' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							1,
-						),
-					),
-					'mandatory_parent' => 'body',
-					'requires_extension' => array(
-						'amp-app-banner',
-					),
-					'spec_url' => 'https://www.ampproject.org/docs/reference/components/amp-app-banner',
-					'unique' => true,
-				),
-			),
-		),
-		'amp-audio' => array(
-			array(
-				'attr_spec_list' => array(
-					'album' => array(),
-					'artist' => array(),
-					'artwork' => array(),
-					'autoplay' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'controls' => array(),
-					'controlslist' => array(),
-					'loop' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'media' => array(),
-					'muted' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'preload' => array(
-						'value_casei' => array(
-							'auto',
-							'metadata',
-							'none',
-						),
-					),
-					'src' => array(
-						'blacklisted_value_regex' => '__amp_source_origin',
-						'value_url' => array(
-							'allow_relative' => true,
-							'protocol' => array(
-								'https',
-							),
-						),
-					),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'defines_default_height' => true,
-						'defines_default_width' => true,
-						'supported_layouts' => array(
-							2,
-							3,
-							1,
-						),
-					),
-					'disallowed_ancestor' => array(
-						'amp-story',
-					),
-					'requires_extension' => array(
-						'amp-audio',
-					),
-					'spec_url' => 'https://www.ampproject.org/docs/reference/components/amp-audio',
-				),
-			),
-			array(
-				'attr_spec_list' => array(
-					'album' => array(),
-					'artist' => array(),
-					'artwork' => array(),
-					'autoplay' => array(
-						'mandatory' => true,
-						'value' => array(
-							'',
-						),
-					),
-					'controls' => array(),
-					'controlslist' => array(),
-					'loop' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'media' => array(),
-					'muted' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'src' => array(
-						'blacklisted_value_regex' => '__amp_source_origin',
-						'value_url' => array(
-							'allow_relative' => true,
-							'protocol' => array(
-								'https',
-							),
-						),
-					),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'defines_default_height' => true,
-						'defines_default_width' => true,
-						'supported_layouts' => array(
-							2,
-							3,
-							1,
-						),
-					),
-					'mandatory_ancestor' => 'amp-story',
-					'requires_extension' => array(
-						'amp-audio',
-					),
-					'spec_name' => 'amp-story >> amp-audio',
-					'spec_url' => 'https://www.ampproject.org/docs/reference/components/amp-audio',
-				),
-			),
-		),
-		'amp-auto-ads' => array(
-			array(
-				'attr_spec_list' => array(
-					'media' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'type' => array(
-						'mandatory' => true,
-					),
-				),
-				'tag_spec' => array(
-					'disallowed_ancestor' => array(
-						'amp-auto-ads',
-					),
-					'requires_extension' => array(
-						'amp-auto-ads',
-					),
-					'spec_url' => 'https://www.ampproject.org/docs/reference/components/amp-auto-ads',
-				),
-			),
-		),
-		'amp-beopinion' => array(
-			array(
-				'attr_spec_list' => array(
-					'data-account' => array(
-						'mandatory' => true,
-						'value_regex_casei' => '[0-9a-f]{24}',
-					),
-					'data-content' => array(
-						'value_regex_casei' => '[0-9a-f]{24}',
-					),
-					'data-my-content' => array(
-						'value' => array(
-							'0',
-							'1',
-						),
-					),
-					'data-name' => array(),
-					'media' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							6,
-							2,
-							3,
-							7,
-							9,
-							1,
-							4,
-						),
-					),
-					'requires_extension' => array(
-						'amp-beopinion',
-					),
-				),
-			),
-		),
-		'amp-bind-macro' => array(
-			array(
-				'attr_spec_list' => array(
-					'arguments' => array(),
-					'expression' => array(
-						'mandatory' => true,
-					),
-					'id' => array(
-						'mandatory' => true,
-					),
-				),
-				'tag_spec' => array(
-					'requires_extension' => array(
-						'amp-bind',
-					),
-					'spec_url' => 'https://www.ampproject.org/docs/reference/components/amp-bind',
-				),
-			),
-		),
-		'amp-bodymovin-animation' => array(
-			array(
-				'attr_spec_list' => array(
-					'loop' => array(
-						'value_casei' => array(
-							'false',
-							'number',
-							'true',
-						),
-					),
-					'noautoplay' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'renderer' => array(
-						'value_casei' => array(
-							'svg',
-							'html',
-						),
-					),
-					'src' => array(
-						'mandatory' => true,
-						'value_url' => array(
-							'allow_relative' => false,
-							'protocol' => array(
-								'https',
-							),
-						),
-					),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							6,
-							2,
-							3,
-							7,
-							1,
-							4,
-						),
-					),
-					'requires_extension' => array(
-						'amp-bodymovin-animation',
-					),
-					'spec_url' => 'https://www.ampproject.org/docs/reference/components/amp-bodymovin-animation',
-				),
-			),
-		),
-		'amp-brid-player' => array(
-			array(
-				'attr_spec_list' => array(
-					'autoplay' => array(),
-					'data-outstream' => array(
-						'value_regex' => '[0-9]+',
-					),
-					'data-partner' => array(
-						'mandatory' => true,
-						'value_regex' => '[0-9]+',
-					),
-					'data-player' => array(
-						'mandatory' => true,
-						'value_regex' => '[0-9]+',
-					),
-					'data-playlist' => array(
-						'value_regex' => '[0-9]+',
-					),
-					'data-video' => array(
-						'value_regex' => '[0-9]+',
-					),
-					'media' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							6,
-							2,
-							3,
-							7,
-							1,
-							4,
-						),
-					),
-					'requires_extension' => array(
-						'amp-brid-player',
-					),
-					'spec_url' => 'https://www.ampproject.org/docs/reference/components/amp-brid-player',
-				),
-			),
-		),
-		'amp-brightcove' => array(
-			array(
-				'attr_spec_list' => array(
-					'[data-account]' => array(),
-					'[data-embed]' => array(),
-					'[data-player-id]' => array(),
-					'[data-player]' => array(),
-					'[data-playlist-id]' => array(),
-					'[data-referrer]' => array(),
-					'[data-video-id]' => array(),
-					'autoplay' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'data-account' => array(
-						'mandatory' => true,
-					),
-					'media' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							6,
-							2,
-							3,
-							7,
-							1,
-							4,
-						),
-					),
-					'requires_extension' => array(
-						'amp-brightcove',
-					),
-					'spec_url' => 'https://www.ampproject.org/docs/reference/components/amp-brightcove',
-				),
-			),
-		),
-		'amp-byside-content' => array(
-			array(
-				'attr_spec_list' => array(
-					'data-label' => array(
-						'mandatory' => true,
-					),
-					'data-webcare-id' => array(
-						'mandatory' => true,
-					),
-					'media' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							6,
-							2,
-							3,
-							7,
-							1,
-							4,
-						),
-					),
-					'requires_extension' => array(
-						'amp-byside-content',
-					),
-				),
-			),
-		),
-		'amp-call-tracking' => array(
-			array(
-				'attr_spec_list' => array(
-					'config' => array(
-						'blacklisted_value_regex' => '__amp_source_origin',
-						'mandatory' => true,
-						'value_url' => array(
-							'allow_relative' => false,
-							'protocol' => array(
-								'https',
-							),
-						),
-					),
-					'media' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							5,
-							6,
-							2,
-							3,
-							7,
-							4,
-						),
-					),
-					'requires_extension' => array(
-						'amp-call-tracking',
-					),
-					'spec_url' => 'https://www.ampproject.org/docs/reference/components/amp-call-tracking',
-				),
-			),
-		),
-		'amp-carousel' => array(
-			array(
-				'attr_spec_list' => array(
-					'[slide]' => array(),
-					'arrows' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'autoplay' => array(
-						'value_regex' => '(|[0-9]+)',
-					),
-					'controls' => array(),
-					'delay' => array(
-						'value_regex' => '[0-9]+',
-					),
-					'dots' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'loop' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'media' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'type' => array(
-						'value' => array(
-							'slides',
-							'carousel',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							6,
-							2,
-							3,
-							7,
-							9,
-							1,
-							4,
-						),
-					),
-					'requires_extension' => array(
-						'amp-carousel',
-					),
-					'spec_url' => 'https://www.ampproject.org/docs/reference/components/amp-carousel',
-				),
-			),
-			array(
-				'attr_spec_list' => array(
-					'[slide]' => array(),
-					'arrows' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'autoplay' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'controls' => array(),
-					'delay' => array(
-						'value_regex' => '[0-9]+',
-					),
-					'dots' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'lightbox' => array(
-						'mandatory' => true,
-					),
-					'loop' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'media' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'type' => array(
-						'value' => array(
-							'slides',
-							'carousel',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							6,
-							2,
-							3,
-							7,
-							9,
-							1,
-							4,
-						),
-					),
-					'reference_points' => array(
-						'AMP-CAROUSEL lightbox [child]' => array(
-							'mandatory' => false,
-							'unique' => false,
-						),
-						'AMP-CAROUSEL lightbox [lightbox-exclude]' => array(
-							'mandatory' => false,
-							'unique' => false,
-						),
-					),
-					'requires_extension' => array(
-						'amp-carousel',
-						'amp-lightbox-gallery',
-					),
-					'spec_name' => 'AMP-CAROUSEL [lightbox]',
-					'spec_url' => 'https://www.ampproject.org/docs/reference/components/amp-carousel',
-				),
-			),
-		),
-		'amp-consent' => array(
-			array(
-				'attr_spec_list' => array(
-					'media' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							1,
-						),
-					),
-					'requires_extension' => array(
-						'amp-consent',
-					),
-					'unique' => true,
-				),
-			),
-		),
-		'amp-dailymotion' => array(
-			array(
-				'attr_spec_list' => array(
-					'autoplay' => array(),
-					'data-endscreen-enable' => array(
-						'value' => array(
-							'false',
-							'true',
-						),
-					),
-					'data-info' => array(
-						'value' => array(
-							'false',
-							'true',
-						),
-					),
-					'data-mute' => array(
-						'value' => array(
-							'false',
-							'true',
-						),
-					),
-					'data-sharing-enable' => array(
-						'value' => array(
-							'false',
-							'true',
-						),
-					),
-					'data-start' => array(
-						'value_regex' => '[0-9]+',
-					),
-					'data-ui-highlight' => array(
-						'value_regex_casei' => '([0-9a-f]{3}){1,2}',
-					),
-					'data-ui-logo' => array(
-						'value' => array(
-							'false',
-							'true',
-						),
-					),
-					'data-videoid' => array(
-						'mandatory' => true,
-						'value_regex_casei' => '[a-z0-9]+',
-					),
-					'media' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							6,
-							2,
-							3,
-							7,
-							4,
-						),
-					),
-					'requires_extension' => array(
-						'amp-dailymotion',
-					),
-					'spec_url' => 'https://www.ampproject.org/docs/reference/components/amp-dailymotion',
-				),
-			),
-		),
-		'amp-date-countdown' => array(
-			array(
-				'attr_spec_list' => array(
-					'biggest-unit' => array(
-						'value_casei' => array(
-							'days',
-							'hours',
-							'minutes',
-							'seconds',
-						),
-					),
-					'end-date' => array(
-						'value_regex' => '\\d{4}-[01]\\d-[0-3]\\dT[0-2]\\d:[0-5]\\d(:[0-5]\\d(\\.\\d+)?)?(Z|[+-][0-1][0-9]:[0-5][0-9])',
-					),
-					'locale' => array(
-						'value_casei' => array(
-							'de',
-							'en',
-							'es',
-							'fr',
-							'id',
-							'it',
-							'ja',
-							'ko',
-							'nl',
-							'pt',
-							'ru',
-							'th',
-							'tr',
-							'vi',
-							'zh-cn',
-							'zh-tw',
-						),
-					),
-					'media' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'offset-seconds' => array(
-						'value_regex' => '-?\\d+',
-					),
-					'template' => array(),
-					'timeleft-ms' => array(
-						'value_regex' => '\\d+',
-					),
-					'timestamp-ms' => array(
-						'value_regex' => '\\d{13}',
-					),
-					'timestamp-seconds' => array(
-						'value_regex' => '\\d{10}',
-					),
-					'when-ended' => array(
-						'value_casei' => array(
-							'continue',
-							'stop',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							6,
-							2,
-							3,
-							7,
-							1,
-							4,
-						),
-					),
-					'requires_extension' => array(
-						'amp-date-countdown',
-					),
-				),
-			),
-		),
-		'amp-date-picker' => array(
-			array(
-				'attr_spec_list' => array(
-					'[max]' => array(),
-					'[min]' => array(),
-					'allow-blocked-ranges' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'blocked' => array(),
-					'date' => array(),
-					'day-size' => array(
-						'value_regex' => '[0-9]+',
-					),
-					'first-day-of-week' => array(
-						'value_regex' => '[0-6]',
-					),
-					'format' => array(),
-					'fullscreen' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'highlighted' => array(),
-					'input-selector' => array(),
-					'locale' => array(),
-					'max' => array(),
-					'media' => array(),
-					'min' => array(),
-					'mode' => array(
-						'value_casei' => array(
-							'static',
-						),
-					),
-					'month-format' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'number-of-months' => array(
-						'value_regex' => '[0-9]+',
-					),
-					'open-after-clear' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'open-after-select' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'src' => array(
-						'blacklisted_value_regex' => '__amp_source_origin',
-						'value_url' => array(
-							'allow_relative' => false,
-							'protocol' => array(
-								'https',
-							),
-						),
-					),
-					'type' => array(
-						'value_casei' => array(
-							'single',
-						),
-					),
-					'week-day-format' => array(),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							6,
-							2,
-							3,
-							7,
-							9,
-							1,
-							4,
-						),
-					),
-					'requires_extension' => array(
-						'amp-date-picker',
-					),
-					'spec_name' => 'amp-date-picker[type=single][mode=static]',
-				),
-			),
-			array(
-				'attr_spec_list' => array(
-					'[max]' => array(),
-					'[min]' => array(),
-					'allow-blocked-ranges' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'blocked' => array(),
-					'date' => array(),
-					'day-size' => array(
-						'value_regex' => '[0-9]+',
-					),
-					'first-day-of-week' => array(
-						'value_regex' => '[0-6]',
-					),
-					'format' => array(),
-					'highlighted' => array(),
-					'input-selector' => array(),
-					'locale' => array(),
-					'max' => array(),
-					'media' => array(),
-					'min' => array(),
-					'mode' => array(
-						'mandatory' => true,
-						'value_casei' => array(
-							'overlay',
-						),
-					),
-					'month-format' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'number-of-months' => array(
-						'value_regex' => '[0-9]+',
-					),
-					'open-after-clear' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'open-after-select' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'src' => array(
-						'blacklisted_value_regex' => '__amp_source_origin',
-						'value_url' => array(
-							'allow_relative' => false,
-							'protocol' => array(
-								'https',
-							),
-						),
-					),
-					'touch-keyboard-editable' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'type' => array(
-						'value_casei' => array(
-							'single',
-						),
-					),
-					'week-day-format' => array(),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							5,
-							1,
-						),
-					),
-					'requires_extension' => array(
-						'amp-date-picker',
-					),
-					'spec_name' => 'amp-date-picker[type=single][mode=overlay]',
-				),
-			),
-			array(
-				'attr_spec_list' => array(
-					'[max]' => array(),
-					'[min]' => array(),
-					'allow-blocked-ranges' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'blocked' => array(),
-					'day-size' => array(
-						'value_regex' => '[0-9]+',
-					),
-					'end-date' => array(),
-					'end-input-selector' => array(),
-					'first-day-of-week' => array(
-						'value_regex' => '[0-6]',
-					),
-					'format' => array(),
-					'fullscreen' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'highlighted' => array(),
-					'locale' => array(),
-					'max' => array(),
-					'media' => array(),
-					'min' => array(),
-					'minimum-nights' => array(
-						'value_regex' => '[0-9]+',
-					),
-					'mode' => array(
-						'value_casei' => array(
-							'static',
-						),
-					),
-					'month-format' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'number-of-months' => array(
-						'value_regex' => '[0-9]+',
-					),
-					'open-after-clear' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'open-after-select' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'src' => array(
-						'blacklisted_value_regex' => '__amp_source_origin',
-						'value_url' => array(
-							'allow_relative' => false,
-							'protocol' => array(
-								'https',
-							),
-						),
-					),
-					'start-date' => array(),
-					'start-input-selector' => array(),
-					'type' => array(
-						'mandatory' => true,
-						'value_casei' => array(
-							'range',
-						),
-					),
-					'week-day-format' => array(),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							6,
-							2,
-							3,
-							7,
-							9,
-							1,
-							4,
-						),
-					),
-					'requires_extension' => array(
-						'amp-date-picker',
-					),
-					'spec_name' => 'amp-date-picker[type=range][mode=static]',
-				),
-			),
-			array(
-				'attr_spec_list' => array(
-					'[max]' => array(),
-					'[min]' => array(),
-					'allow-blocked-ranges' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'blocked' => array(),
-					'day-size' => array(
-						'value_regex' => '[0-9]+',
-					),
-					'end-date' => array(),
-					'end-input-selector' => array(),
-					'first-day-of-week' => array(
-						'value_regex' => '[0-6]',
-					),
-					'format' => array(),
-					'highlighted' => array(),
-					'locale' => array(),
-					'max' => array(),
-					'media' => array(),
-					'min' => array(),
-					'minimum-nights' => array(
-						'value_regex' => '[0-9]+',
-					),
-					'mode' => array(
-						'mandatory' => true,
-						'value_casei' => array(
-							'overlay',
-						),
-					),
-					'month-format' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'number-of-months' => array(
-						'value_regex' => '[0-9]+',
-					),
-					'open-after-clear' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'open-after-select' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'src' => array(
-						'blacklisted_value_regex' => '__amp_source_origin',
-						'value_url' => array(
-							'allow_relative' => false,
-							'protocol' => array(
-								'https',
-							),
-						),
-					),
-					'start-date' => array(),
-					'start-input-selector' => array(),
-					'touch-keyboard-editable' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'type' => array(
-						'mandatory' => true,
-						'value_casei' => array(
-							'range',
-						),
-					),
-					'week-day-format' => array(),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							5,
-							1,
-						),
-					),
-					'requires_extension' => array(
-						'amp-date-picker',
-					),
-					'spec_name' => 'amp-date-picker[type=range][mode=overlay]',
-				),
-			),
-		),
-		'amp-embed' => array(
-			array(
-				'attr_spec_list' => array(
-					'alt' => array(),
-					'json' => array(),
-					'media' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'rtc-config' => array(),
-					'src' => array(
-						'blacklisted_value_regex' => '__amp_source_origin',
-						'value_url' => array(
-							'allow_relative' => true,
-							'protocol' => array(
-								'https',
-							),
-						),
-					),
-					'template' => array(),
-					'type' => array(
-						'mandatory' => true,
-					),
-				),
-				'tag_spec' => array(
-					'also_requires_tag_warning' => array(
-						'amp-ad extension .js script',
-					),
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							6,
-							2,
-							3,
-							7,
-							8,
-							9,
-							1,
-							4,
-						),
-					),
-					'disallowed_ancestor' => array(
-						'amp-app-banner',
-					),
-					'requires_extension' => array(
-						'amp-ad',
-					),
-					'spec_url' => 'https://www.ampproject.org/docs/reference/components/amp-ad',
-				),
-			),
-			array(
-				'attr_spec_list' => array(
-					'alt' => array(),
-					'data-multi-size' => array(
-						'dispatch_key' => 2,
-						'mandatory' => true,
-						'value' => array(
-							'',
-						),
-					),
-					'json' => array(),
-					'media' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'rtc-config' => array(),
-					'src' => array(
-						'blacklisted_value_regex' => '__amp_source_origin',
-						'value_url' => array(
-							'allow_relative' => true,
-							'protocol' => array(
-								'https',
-							),
-						),
-					),
-					'type' => array(
-						'mandatory' => true,
-					),
-				),
-				'tag_spec' => array(
-					'also_requires_tag_warning' => array(
-						'amp-ad extension .js script',
-					),
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							6,
-							2,
-							3,
-							7,
-							8,
-							9,
-							1,
-							4,
-						),
-					),
-					'disallowed_ancestor' => array(
-						'amp-app-banner',
-						'amp-carousel',
-						'amp-fx-flying-carpet',
-						'amp-lightbox',
-						'amp-sticky-ad',
-					),
-					'requires_extension' => array(
-						'amp-ad',
-					),
-					'spec_name' => 'amp-embed with data-multi-size attribute',
-					'spec_url' => 'https://www.ampproject.org/docs/reference/components/amp-ad',
-				),
-			),
-		),
-		'amp-embedly-card' => array(
-			array(
-				'attr_spec_list' => array(
-					'data-url' => array(
-						'mandatory' => true,
-						'value_url' => array(
-							'allow_relative' => false,
-							'protocol' => array(
-								'https',
-							),
-						),
-					),
-					'media' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							4,
-						),
-					),
-					'requires_extension' => array(
-						'amp-embedly-card',
-					),
-					'spec_url' => 'https://www.ampproject.org/docs/reference/components/amp-embedly-card',
-				),
-			),
-		),
-		'amp-embedly-key' => array(
-			array(
-				'attr_spec_list' => array(
-					'value' => array(
-						'mandatory' => true,
-					),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							1,
-						),
-					),
-					'requires_extension' => array(
-						'amp-embedly-card',
-					),
-					'unique' => true,
-				),
-			),
-		),
-		'amp-experiment' => array(
-			array(
-				'attr_spec_list' => array(),
-				'tag_spec' => array(
-					'requires_extension' => array(
-						'amp-experiment',
-					),
-					'spec_url' => 'https://www.ampproject.org/docs/reference/components/amp-experiment',
-					'unique' => true,
-				),
-			),
-		),
-		'amp-facebook' => array(
-			array(
-				'attr_spec_list' => array(
-					'data-href' => array(
-						'mandatory' => true,
-					),
-					'media' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							6,
-							2,
-							3,
-							7,
-							1,
-							4,
-						),
-					),
-					'requires_extension' => array(
-						'amp-facebook',
-					),
-				),
-			),
-		),
-		'amp-facebook-comments' => array(
-			array(
-				'attr_spec_list' => array(
-					'data-href' => array(
-						'mandatory' => true,
-					),
-					'media' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							6,
-							2,
-							3,
-							7,
-							1,
-							4,
-						),
-					),
-					'requires_extension' => array(
-						'amp-facebook-comments',
-					),
-				),
-			),
-		),
-		'amp-facebook-like' => array(
-			array(
-				'attr_spec_list' => array(
-					'data-href' => array(
-						'mandatory' => true,
-						'value_url' => array(
-							'allow_relative' => false,
-							'protocol' => array(
-								'http',
-								'https',
-							),
-						),
-					),
-					'media' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							6,
-							2,
-							3,
-							7,
-							1,
-							4,
-						),
-					),
-					'requires_extension' => array(
-						'amp-facebook-like',
-					),
-				),
-			),
-		),
-		'amp-facebook-page' => array(
-			array(
-				'attr_spec_list' => array(
-					'data-href' => array(
-						'mandatory' => true,
-						'value_url' => array(
-							'allow_relative' => false,
-							'protocol' => array(
-								'http',
-								'https',
-							),
-						),
-					),
-					'media' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							6,
-							2,
-							3,
-							7,
-							1,
-							4,
-						),
-					),
-					'requires_extension' => array(
-						'amp-facebook-page',
-					),
-				),
-			),
-		),
-		'amp-fit-text' => array(
-			array(
-				'attr_spec_list' => array(
-					'max-font-size' => array(),
-					'media' => array(),
-					'min-font-size' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							6,
-							2,
-							3,
-							7,
-							9,
-							1,
-							4,
-						),
-					),
-					'requires_extension' => array(
-						'amp-fit-text',
-					),
-				),
-			),
-		),
-		'amp-font' => array(
-			array(
-				'attr_spec_list' => array(
-					'font-family' => array(
-						'mandatory' => true,
-					),
-					'font-style' => array(),
-					'font-variant' => array(),
-					'font-weight' => array(),
-					'media' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'on-error-add-class' => array(),
-					'on-error-remove-class' => array(),
-					'on-load-add-class' => array(),
-					'on-load-remove-class' => array(),
-					'timeout' => array(
-						'value_regex' => '[0-9]+',
-					),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							1,
-						),
-					),
-					'requires_extension' => array(
-						'amp-font',
-					),
-				),
-			),
-		),
-		'amp-fx-flying-carpet' => array(
-			array(
-				'attr_spec_list' => array(
-					'height' => array(
-						'mandatory' => true,
-					),
-					'media' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'requires_extension' => array(
-						'amp-fx-flying-carpet',
-					),
-				),
-			),
-		),
-		'amp-geo' => array(
-			array(
-				'attr_spec_list' => array(
-					'media' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							1,
-						),
-					),
-					'requires_extension' => array(
-						'amp-geo',
-					),
-					'unique' => true,
-				),
-			),
-		),
-		'amp-gfycat' => array(
-			array(
-				'attr_spec_list' => array(
-					'data-gfyid' => array(
-						'mandatory' => true,
-					),
-					'media' => array(),
-					'noautoplay' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							6,
-							2,
-							3,
-							7,
-							4,
-						),
-					),
-					'requires_extension' => array(
-						'amp-gfycat',
-					),
-					'spec_url' => 'https://www.ampproject.org/docs/reference/components/amp-gfycat',
-				),
-			),
-		),
-		'amp-gist' => array(
-			array(
-				'attr_spec_list' => array(
-					'data-gistid' => array(
-						'mandatory' => true,
-					),
-					'media' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							3,
-						),
-					),
-					'requires_extension' => array(
-						'amp-gist',
-					),
-					'spec_url' => 'https://www.ampproject.org/docs/reference/components/amp-gist',
-				),
-			),
-		),
-		'amp-google-document-embed' => array(
-			array(
-				'attr_spec_list' => array(
-					'[src]' => array(),
-					'[title]' => array(),
-					'media' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'src' => array(
-						'blacklisted_value_regex' => '__amp_source_origin',
-						'mandatory' => true,
-						'value_url' => array(
-							'allow_relative' => false,
-							'protocol' => array(
-								'https',
-							),
-						),
-					),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							6,
-							2,
-							3,
-							7,
-							9,
-							1,
-							4,
-						),
-					),
-					'requires_extension' => array(
-						'amp-google-document-embed',
-					),
-					'spec_url' => 'https://www.ampproject.org/docs/reference/components/amp-google-document-embed',
-				),
-			),
-		),
-		'amp-hulu' => array(
-			array(
-				'attr_spec_list' => array(
-					'data-eid' => array(
-						'mandatory' => true,
-					),
-					'media' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							6,
-							2,
-							3,
-							7,
-							4,
-						),
-					),
-					'requires_extension' => array(
-						'amp-hulu',
-					),
-					'spec_url' => 'https://www.ampproject.org/docs/reference/components/amp-hulu',
-				),
-			),
-		),
-		'amp-iframe' => array(
-			array(
-				'attr_spec_list' => array(
-					'[src]' => array(),
-					'allow' => array(),
-					'allowfullscreen' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'allowpaymentrequest' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'allowtransparency' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'frameborder' => array(
-						'value' => array(
-							'0',
-							'1',
-						),
-					),
-					'media' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'referrerpolicy' => array(),
-					'resizable' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'sandbox' => array(),
-					'scrolling' => array(
-						'value' => array(
-							'auto',
-							'no',
-							'yes',
-						),
-					),
-					'src' => array(
-						'blacklisted_value_regex' => '__amp_source_origin',
-						'value_url' => array(
-							'allow_relative' => true,
-							'protocol' => array(
-								'data',
-								'https',
-							),
-						),
-					),
-					'srcdoc' => array(),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							6,
-							2,
-							3,
-							7,
-							9,
-							1,
-							4,
-						),
-					),
-					'requires_extension' => array(
-						'amp-iframe',
-					),
-				),
-			),
-		),
-		'amp-ima-video' => array(
-			array(
-				'attr_spec_list' => array(
-					'autoplay' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'data-src' => array(
-						'blacklisted_value_regex' => '__amp_source_origin',
-						'value_url' => array(
-							'allow_relative' => true,
-							'protocol' => array(
-								'https',
-							),
-						),
-					),
-					'data-tag' => array(
-						'mandatory' => true,
-						'value_url' => array(
-							'allow_relative' => true,
-							'protocol' => array(
-								'https',
-							),
-						),
-					),
-					'media' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'rotate-to-fullscreen' => array(
-						'value' => array(
-							'',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							6,
-							2,
-							3,
-							1,
-							4,
-						),
-					),
-					'requires_extension' => array(
-						'amp-ima-video',
-					),
-					'spec_url' => 'https://www.ampproject.org/docs/reference/components/amp-ima-video',
-				),
-			),
-		),
-		'amp-image-lightbox' => array(
-			array(
-				'attr_spec_list' => array(
-					'controls' => array(),
-					'media' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							1,
-						),
-					),
-					'requires_extension' => array(
-						'amp-image-lightbox',
-					),
-				),
-			),
-		),
-		'amp-image-slider' => array(
-			array(
-				'attr_spec_list' => array(
-					'disable-hint-reappear' => array(),
-					'initial-slider-position' => array(
-						'value_regex' => '0(\\.[0-9]+)?|1(\\.0+)?',
-					),
-					'media' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'step-size' => array(
-						'value_regex' => '0(\\.[0-9]+)?|1(\\.0+)?',
-					),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							2,
-							9,
-							1,
-							4,
-						),
-					),
-					'requires_extension' => array(
-						'amp-image-slider',
-					),
-					'spec_url' => 'https://www.ampproject.org/docs/reference/components/amp-image-slider',
-				),
-			),
-		),
-		'amp-img' => array(
-			array(
-				'attr_spec_list' => array(
-					'[alt]' => array(),
-					'[attribution]' => array(),
-					'[src]' => array(),
-					'[srcset]' => array(),
-					'alt' => array(),
-					'attribution' => array(),
-					'lightbox' => array(),
-					'lightbox-thumbnail-id' => array(
-						'value_regex_casei' => '^[a-z][a-z\\d_-]*',
-					),
-					'media' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'placeholder' => array(),
-					'src' => array(
-						'alternative_names' => array(
-							'srcset',
-						),
-						'blacklisted_value_regex' => '__amp_source_origin',
-						'mandatory' => true,
-						'value_url' => array(
-							'protocol' => array(
-								'data',
-								'http',
-								'https',
-							),
-						),
-					),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							6,
-							2,
-							3,
-							7,
-							9,
-							1,
-							4,
-						),
-					),
-					'spec_url' => 'https://www.ampproject.org/docs/reference/components/amp-img',
-				),
-			),
-		),
-		'amp-imgur' => array(
-			array(
-				'attr_spec_list' => array(
-					'data-imgur-id' => array(
-						'mandatory' => true,
-					),
-					'media' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							6,
-							2,
-							3,
-							7,
-							1,
-							4,
-						),
-					),
-					'requires_extension' => array(
-						'amp-imgur',
-					),
-				),
-			),
-		),
-		'amp-instagram' => array(
-			array(
-				'attr_spec_list' => array(
-					'alt' => array(),
-					'data-shortcode' => array(
-						'mandatory' => true,
-					),
-					'media' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							6,
-							2,
-							3,
-							7,
-							1,
-							4,
-						),
-					),
-					'requires_extension' => array(
-						'amp-instagram',
-					),
-				),
-			),
-		),
-		'amp-install-serviceworker' => array(
-			array(
-				'attr_spec_list' => array(
-					'data-iframe-src' => array(
-						'blacklisted_value_regex' => '__amp_source_origin',
-						'value_url' => array(
-							'allow_relative' => true,
-							'protocol' => array(
-								'https',
-							),
-						),
-					),
-					'src' => array(
-						'blacklisted_value_regex' => '__amp_source_origin',
-						'mandatory' => true,
-						'value_url' => array(
-							'allow_relative' => true,
-							'protocol' => array(
-								'https',
-							),
-						),
-					),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							1,
-						),
-					),
-					'requires_extension' => array(
-						'amp-install-serviceworker',
-					),
-				),
-			),
-		),
-		'amp-izlesene' => array(
-			array(
-				'attr_spec_list' => array(
-					'data-videoid' => array(
-						'mandatory' => true,
-						'value_regex' => '[0-9]+',
-					),
-					'media' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							6,
-							2,
-							3,
-							7,
-							4,
-						),
-					),
-					'requires_extension' => array(
-						'amp-izlesene',
-					),
-				),
-			),
-		),
-		'amp-jwplayer' => array(
-			array(
-				'attr_spec_list' => array(
-					'data-media-id' => array(
-						'value_regex_casei' => '[0-9a-z]{8}',
-					),
-					'data-player-id' => array(
-						'mandatory' => true,
-						'value_regex_casei' => '[0-9a-z]{8}',
-					),
-					'data-playlist-id' => array(
-						'value_regex_casei' => '[0-9a-z]{8}',
-					),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							6,
-							2,
-							3,
-							7,
-							1,
-							4,
-						),
-					),
-					'requires_extension' => array(
-						'amp-jwplayer',
-					),
-				),
-			),
-		),
-		'amp-kaltura-player' => array(
-			array(
-				'attr_spec_list' => array(
-					'data-partner' => array(
-						'mandatory' => true,
-					),
-					'media' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							6,
-							2,
-							3,
-							7,
-							1,
-							4,
-						),
-					),
-					'requires_extension' => array(
-						'amp-kaltura-player',
-					),
-				),
-			),
-		),
-		'amp-layout' => array(
-			array(
-				'attr_spec_list' => array(
-					'media' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							6,
-							2,
-							3,
-							7,
-							9,
-							1,
-							4,
-							5,
-						),
-					),
-					'spec_url' => 'https://www.ampproject.org/docs/reference/components/amp-layout',
-				),
-			),
-		),
-		'amp-lightbox' => array(
-			array(
-				'attr_spec_list' => array(
-					'[open]' => array(),
-					'animate-in' => array(
-						'value_casei' => array(
-							'fade-in',
-							'fly-in-bottom',
-							'fly-in-top',
-						),
-					),
-					'controls' => array(),
-					'from' => array(),
-					'media' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'scrollable' => array(),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							1,
-						),
-					),
-					'requires_extension' => array(
-						'amp-lightbox',
-					),
-				),
-			),
-		),
-		'amp-list' => array(
-			array(
-				'attr_spec_list' => array(
-					'[src]' => array(),
-					'[state]' => array(),
-					'auto-resize' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'binding' => array(
-						'value' => array(
-							'always',
-							'no',
-							'refresh',
-						),
-					),
-					'credentials' => array(),
-					'items' => array(),
-					'max-items' => array(),
-					'media' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'reset-on-refresh' => array(
-						'value' => array(
-							'',
-							'always',
-							'fetch',
-						),
-					),
-					'single-item' => array(),
-					'src' => array(
-						'blacklisted_value_regex' => '__amp_source_origin',
-						'value_url' => array(
-							'allow_relative' => true,
-							'protocol' => array(
-								'https',
-							),
-						),
-					),
-					'template' => array(),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							6,
-							2,
-							3,
-							7,
-							1,
-							4,
-						),
-					),
-					'requires_extension' => array(
-						'amp-list',
-					),
-				),
-			),
-		),
-		'amp-live-list' => array(
-			array(
-				'attr_spec_list' => array(
-					'data-max-items-per-page' => array(
-						'mandatory' => true,
-						'value_regex' => '\\d+',
-					),
-					'data-poll-interval' => array(
-						'value_regex' => '\\d{5,}',
-					),
-					'disabled' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'id' => array(
-						'mandatory' => true,
-					),
-					'sort' => array(
-						'value' => array(
-							'ascending',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							5,
-							3,
-						),
-					),
-					'reference_points' => array(
-						'AMP-LIVE-LIST [items]' => array(
-							'mandatory' => true,
-							'unique' => true,
-						),
-						'AMP-LIVE-LIST [pagination]' => array(
-							'mandatory' => false,
-							'unique' => true,
-						),
-						'AMP-LIVE-LIST [update]' => array(
-							'mandatory' => true,
-							'unique' => true,
-						),
-					),
-					'requires_extension' => array(
-						'amp-live-list',
-					),
-				),
-			),
-		),
-		'amp-mathml' => array(
-			array(
-				'attr_spec_list' => array(
-					'data-formula' => array(
-						'mandatory' => true,
-					),
-					'inline' => array(),
-					'media' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							5,
-						),
-					),
-					'requires_extension' => array(
-						'amp-mathml',
-					),
-				),
-			),
-		),
-		'amp-mowplayer' => array(
-			array(
-				'attr_spec_list' => array(
-					'autoplay' => array(),
-					'data-mediaid' => array(
-						'mandatory' => true,
-					),
-					'media' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							6,
-							2,
-							3,
-							7,
-							1,
-							4,
-						),
-					),
-					'requires_extension' => array(
-						'amp-mowplayer',
-					),
-				),
-			),
-		),
-		'amp-next-page' => array(
-			array(
-				'attr_spec_list' => array(),
-				'tag_spec' => array(
-					'reference_points' => array(
-						'AMP-NEXT-PAGE > [separator]' => array(
-							'mandatory' => false,
-							'unique' => true,
-						),
-						'amp-next-page extension .json configuration' => array(
-							'mandatory' => true,
-							'unique' => true,
-						),
-					),
-					'requires_extension' => array(
-						'amp-next-page',
-					),
-					'spec_name' => 'amp-next-page with inline config',
-					'spec_url' => 'https://www.ampproject.org/docs/reference/components/amp-next-page',
-					'unique' => true,
-				),
-			),
-			array(
-				'attr_spec_list' => array(
-					'src' => array(
-						'blacklisted_value_regex' => '__amp_source_origin',
-						'mandatory' => true,
-						'value_url' => array(
-							'allow_relative' => false,
-							'protocol' => array(
-								'https',
-							),
-						),
-					),
-				),
-				'tag_spec' => array(
-					'reference_points' => array(
-						'AMP-NEXT-PAGE > [separator]' => array(
-							'mandatory' => false,
-							'unique' => true,
-						),
-					),
-					'requires_extension' => array(
-						'amp-next-page',
-					),
-					'spec_name' => 'amp-next-page with src attribute',
-					'spec_url' => 'https://www.ampproject.org/docs/reference/components/amp-next-page',
-					'unique' => true,
-				),
-			),
-		),
-		'amp-nexxtv-player' => array(
-			array(
-				'attr_spec_list' => array(
-					'data-client' => array(
-						'mandatory' => true,
-					),
-					'data-mediaid' => array(
-						'mandatory' => true,
-						'value_regex' => '[^=/?:]+',
-					),
-					'data-mode' => array(
-						'value' => array(
-							'api',
-							'static',
-						),
-					),
-					'data-origin' => array(
-						'value_url' => array(
-							'allow_empty' => true,
-							'protocol' => array(
-								'https',
-								'http',
-							),
-						),
-					),
-					'data-streamtype' => array(
-						'value' => array(
-							'album',
-							'audio',
-							'live',
-							'playlist',
-							'playlist-marked',
-							'video',
-						),
-					),
-					'media' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							6,
-							2,
-							3,
-							7,
-							1,
-							4,
-						),
-					),
-					'requires_extension' => array(
-						'amp-nexxtv-player',
-					),
-				),
-			),
-		),
-		'amp-o2-player' => array(
-			array(
-				'attr_spec_list' => array(
-					'data-bcid' => array(
-						'mandatory' => true,
-					),
-					'data-pid' => array(
-						'mandatory' => true,
-					),
-					'media' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							6,
-							2,
-							3,
-							7,
-							1,
-							4,
-						),
-					),
-					'requires_extension' => array(
-						'amp-o2-player',
-					),
-				),
-			),
-		),
-		'amp-ooyala-player' => array(
-			array(
-				'attr_spec_list' => array(
-					'data-embedcode' => array(
-						'mandatory' => true,
-					),
-					'data-pcode' => array(
-						'mandatory' => true,
-					),
-					'data-playerid' => array(
-						'mandatory' => true,
-					),
-					'media' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							6,
-							2,
-							7,
-							4,
-						),
-					),
-					'requires_extension' => array(
-						'amp-ooyala-player',
-					),
-				),
-			),
-		),
-		'amp-orientation-observer' => array(
-			array(
-				'attr_spec_list' => array(
-					'alpha-range' => array(
-						'value_regex' => '(\\d+)\\s{1}(\\d+)',
-					),
-					'beta-range' => array(
-						'value_regex' => '(\\d+)\\s{1}(\\d+)',
-					),
-					'gamma-range' => array(
-						'value_regex' => '(\\d+)\\s{1}(\\d+)',
-					),
-					'media' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							1,
-						),
-					),
-					'requires_extension' => array(
-						'amp-orientation-observer',
-					),
-				),
-			),
-		),
-		'amp-pan-zoom' => array(
-			array(
-				'attr_spec_list' => array(
-					'disable-double-tap' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'initial-scale' => array(
-						'value_regex' => '[0-9]+(\\.[0-9]+)?',
-					),
-					'initial-x' => array(
-						'value_regex' => '[0-9]+',
-					),
-					'initial-y' => array(
-						'value_regex' => '[0-9]+',
-					),
-					'max-scale' => array(
-						'value_regex' => '[0-9]+(\\.[0-9]+)?',
-					),
-					'media' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'reset-on-resize' => array(
-						'value' => array(
-							'',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							6,
-							2,
-							3,
-							4,
-						),
-					),
-					'requires_extension' => array(
-						'amp-pan-zoom',
-					),
-				),
-			),
-		),
-		'amp-pinterest' => array(
-			array(
-				'attr_spec_list' => array(
-					'alt' => array(),
-					'data-do' => array(
-						'mandatory' => true,
-					),
-					'media' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							6,
-							2,
-							3,
-							7,
-							1,
-							4,
-						),
-					),
-					'requires_extension' => array(
-						'amp-pinterest',
-					),
-					'spec_url' => 'https://www.ampproject.org/docs/reference/components/amp-pinterest',
-				),
-			),
-		),
-		'amp-pixel' => array(
-			array(
-				'attr_spec_list' => array(
-					'allow-ssr-img' => array(),
-					'media' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'referrerpolicy' => array(
-						'value' => array(
-							'no-referrer',
-						),
-					),
-					'src' => array(
-						'blacklisted_value_regex' => '__amp_source_origin',
-						'mandatory' => true,
-						'value_url' => array(
-							'allow_empty' => true,
-							'allow_relative' => true,
-							'protocol' => array(
-								'https',
-							),
-						),
-					),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'defines_default_height' => true,
-						'defines_default_width' => true,
-						'supported_layouts' => array(
-							2,
-							1,
-						),
-					),
-					'spec_url' => 'https://www.ampproject.org/docs/reference/components/amp-pixel',
-				),
-			),
-		),
-		'amp-playbuzz' => array(
-			array(
-				'attr_spec_list' => array(
-					'data-comments' => array(
-						'value_casei' => array(
-							'false',
-							'true',
-						),
-					),
-					'data-item' => array(),
-					'data-item-info' => array(
-						'value_casei' => array(
-							'false',
-							'true',
-						),
-					),
-					'data-share-buttons' => array(
-						'value_casei' => array(
-							'false',
-							'true',
-						),
-					),
-					'media' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'src' => array(),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							4,
-							3,
-						),
-					),
-					'requires_extension' => array(
-						'amp-playbuzz',
-					),
-				),
-			),
-		),
-		'amp-position-observer' => array(
-			array(
-				'attr_spec_list' => array(
-					'intersection-ratios' => array(
-						'value_regex' => '^([0]*?\\.\\d*$|1$|0$)|([0]*?\\.\\d*|1|0)\\s{1}([0]*?\\.\\d*$|1$|0$)',
-					),
-					'media' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'once' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'target' => array(),
-					'viewport-margins' => array(
-						'value_regex' => '^(\\d+$|\\d+px$|\\d+vh$)|((\\d+|\\d+px|\\d+vh)\\s{1}(\\d+$|\\d+px$|\\d+vh$))',
-					),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							1,
-						),
-					),
-					'requires_extension' => array(
-						'amp-position-observer',
-					),
-				),
-			),
-		),
-		'amp-powr-player' => array(
-			array(
-				'attr_spec_list' => array(
-					'[data-referrer]' => array(),
-					'autoplay' => array(),
-					'data-account' => array(
-						'mandatory' => true,
-						'value_regex' => '[0-9a-zA-Z-]+',
-					),
-					'data-player' => array(
-						'mandatory' => true,
-						'value_regex' => '[0-9a-zA-Z-]+',
-					),
-					'data-terms' => array(),
-					'data-video' => array(
-						'value_regex' => '[0-9a-zA-Z-]+',
-					),
-					'media' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							6,
-							2,
-							3,
-							7,
-							1,
-							4,
-						),
-					),
-					'requires_extension' => array(
-						'amp-powr-player',
-					),
-					'spec_url' => 'https://www.ampproject.org/docs/reference/components/amp-powr-player',
-				),
-			),
-		),
-		'amp-reach-player' => array(
-			array(
-				'attr_spec_list' => array(
-					'data-embed-id' => array(
-						'mandatory' => true,
-						'value_regex' => '[0-9a-z-]+',
-					),
-					'media' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							6,
-							2,
-							3,
-							7,
-							4,
-						),
-					),
-					'requires_extension' => array(
-						'amp-reach-player',
-					),
-				),
-			),
-		),
-		'amp-reddit' => array(
-			array(
-				'attr_spec_list' => array(
-					'data-embedlive' => array(
-						'value_casei' => array(
-							'false',
-							'true',
-						),
-					),
-					'data-embedparent' => array(
-						'value_casei' => array(
-							'false',
-							'true',
-						),
-					),
-					'data-embedtype' => array(
-						'mandatory' => true,
-						'value_casei' => array(
-							'comment',
-							'post',
-						),
-					),
-					'data-src' => array(
-						'mandatory' => true,
-					),
-					'media' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							6,
-							2,
-							3,
-							7,
-							1,
-							4,
-						),
-					),
-					'requires_extension' => array(
-						'amp-reddit',
-					),
-				),
-			),
-		),
-		'amp-riddle-quiz' => array(
-			array(
-				'attr_spec_list' => array(
-					'data-riddle-id' => array(
-						'mandatory' => true,
-						'value_regex' => '[0-9]+',
-					),
-					'media' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							4,
-						),
-					),
-					'requires_extension' => array(
-						'amp-riddle-quiz',
-					),
-					'spec_url' => 'https://www.ampproject.org/docs/reference/components/amp-riddle-quiz',
-				),
-			),
-		),
-		'amp-script' => array(
-			array(
-				'attr_spec_list' => array(
-					'media' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'src' => array(
-						'blacklisted_value_regex' => '__amp_source_origin',
-						'mandatory' => true,
-						'value_url' => array(
-							'allow_relative' => false,
-							'protocol' => array(
-								'https',
-							),
-						),
-					),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							5,
-							6,
-							2,
-							3,
-							7,
-							1,
-							4,
-						),
-					),
-					'disallowed_ancestor' => array(
-						'amp-script',
-					),
-					'requires_extension' => array(
-						'amp-script',
-					),
-				),
-			),
-		),
-		'amp-selector' => array(
-			array(
-				'attr_spec_list' => array(
-					'[disabled]' => array(),
-					'[selected]' => array(),
-					'disabled' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'form' => array(),
-					'keyboard-select-mode' => array(
-						'value_casei' => array(
-							'focus',
-							'none',
-							'select',
-						),
-					),
-					'media' => array(),
-					'multiple' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'name' => array(
-						'blacklisted_value_regex' => '(^|\\s)(__amp_\\S*|__count__|__defineGetter__|__defineSetter__|__lookupGetter__|__lookupSetter__|__noSuchMethod__|__parent__|__proto__|__AMP_\\S*|\\$p|\\$proxy|acceptCharset|addEventListener|appendChild|assignedSlot|attachShadow|baseURI|checkValidity|childElementCount|childNodes|classList|className|clientHeight|clientLeft|clientTop|clientWidth|compareDocumentPosition|computedName|computedRole|contentEditable|createShadowRoot|enqueAction|firstChild|firstElementChild|getAnimations|getAttribute|getAttributeNS|getAttributeNode|getAttributeNodeNS|getBoundingClientRect|getClientRects|getDestinationInsertionPoints|getElementsByClassName|getElementsByTagName|getElementsByTagNameNS|getRootNode|hasAttribute|hasAttributeNS|hasAttributes|hasChildNodes|hasPointerCapture|innerHTML|innerText|inputMode|insertAdjacentElement|insertAdjacentHTML|insertAdjacentText|isContentEditable|isDefaultNamespace|isEqualNode|isSameNode|lastChild|lastElementChild|lookupNamespaceURI|namespaceURI|nextElementSibling|nextSibling|nodeName|nodeType|nodeValue|offsetHeight|offsetLeft|offsetParent|offsetTop|offsetWidth|outerHTML|outerText|ownerDocument|parentElement|parentNode|previousElementSibling|previousSibling|querySelector|querySelectorAll|releasePointerCapture|removeAttribute|removeAttributeNS|removeAttributeNode|removeChild|removeEventListener|replaceChild|reportValidity|requestPointerLock|scrollHeight|scrollIntoView|scrollIntoViewIfNeeded|scrollLeft|scrollWidth|setAttribute|setAttributeNS|setAttributeNode|setAttributeNodeNS|setPointerCapture|shadowRoot|styleMap|tabIndex|tagName|textContent|toString|valueOf|(webkit|ms|moz|o)dropzone|(webkit|moz|ms|o)MatchesSelector|(webkit|moz|ms|o)RequestFullScreen|(webkit|moz|ms|o)RequestFullscreen)(\\s|$)',
-					),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							6,
-							2,
-							3,
-							1,
-							4,
-							5,
-						),
-					),
-					'disallowed_ancestor' => array(
-						'amp-selector',
-					),
-					'reference_points' => array(
-						'AMP-SELECTOR child' => array(
-							'mandatory' => false,
-							'unique' => false,
-						),
-						'AMP-SELECTOR option' => array(
-							'mandatory' => false,
-							'unique' => false,
-						),
-					),
-					'requires_extension' => array(
-						'amp-selector',
-					),
-				),
-			),
-		),
-		'amp-sidebar' => array(
-			array(
-				'attr_spec_list' => array(
-					'media' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'side' => array(
-						'value' => array(
-							'left',
-							'right',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							1,
-						),
-					),
-					'mandatory_parent' => 'body',
-					'requires_extension' => array(
-						'amp-sidebar',
-					),
-				),
-			),
-		),
-		'amp-skimlinks' => array(
-			array(
-				'attr_spec_list' => array(
-					'custom-tracking-id' => array(
-						'value_regex_casei' => '^.{0,50}$',
-					),
-					'excluded-domains' => array(),
-					'link-selector' => array(),
-					'media' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'publisher-code' => array(
-						'mandatory' => true,
-						'value_regex_casei' => '^[0-9]+X[0-9]+$',
-					),
-					'tracking' => array(
-						'value' => array(
-							'false',
-							'true',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							1,
-						),
-					),
-					'requires_extension' => array(
-						'amp-skimlinks',
-					),
-				),
-			),
-		),
-		'amp-social-share' => array(
-			array(
-				'attr_spec_list' => array(
-					'data-share-endpoint' => array(
-						'blacklisted_value_regex' => '__amp_source_origin',
-						'value_url' => array(
-							'allow_relative' => false,
-							'protocol' => array(
-								'ftp',
-								'http',
-								'https',
-								'mailto',
-								'bbmi',
-								'fb-messenger',
-								'intent',
-								'line',
-								'skype',
-								'sms',
-								'snapchat',
-								'tel',
-								'tg',
-								'threema',
-								'viber',
-								'whatsapp',
-							),
-						),
-					),
-					'media' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'type' => array(
-						'mandatory' => true,
-					),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							5,
-							6,
-							2,
-							3,
-							7,
-							1,
-							4,
-						),
-					),
-					'requires_extension' => array(
-						'amp-social-share',
-					),
-				),
-			),
-		),
-		'amp-soundcloud' => array(
-			array(
-				'attr_spec_list' => array(
-					'data-color' => array(
-						'value_regex_casei' => '([0-9a-f]{3}){1,2}',
-					),
-					'data-playlistid' => array(
-						'value_regex' => '[0-9]+',
-					),
-					'data-secret-token' => array(
-						'value_regex' => '[A-Za-z0-9_-]+',
-					),
-					'data-trackid' => array(
-						'value_regex' => '[0-9]+',
-					),
-					'data-visual' => array(
-						'value_casei' => array(
-							'false',
-							'true',
-						),
-					),
-					'media' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							3,
-						),
-					),
-					'requires_extension' => array(
-						'amp-soundcloud',
-					),
-				),
-			),
-		),
-		'amp-springboard-player' => array(
-			array(
-				'attr_spec_list' => array(
-					'data-content-id' => array(
-						'mandatory' => true,
-					),
-					'data-domain' => array(
-						'mandatory' => true,
-					),
-					'data-items' => array(
-						'mandatory' => true,
-					),
-					'data-mode' => array(
-						'mandatory' => true,
-						'value_casei' => array(
-							'playlist',
-							'video',
-						),
-					),
-					'data-player-id' => array(
-						'mandatory' => true,
-						'value_regex_casei' => '[a-z0-9]+',
-					),
-					'data-site-id' => array(
-						'mandatory' => true,
-						'value_regex' => '[0-9]+',
-					),
-					'media' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							6,
-							2,
-							7,
-							4,
-						),
-					),
-					'requires_extension' => array(
-						'amp-springboard-player',
-					),
-				),
-			),
-		),
-		'amp-state' => array(
-			array(
-				'attr_spec_list' => array(
-					'[src]' => array(),
-					'credentials' => array(),
-					'id' => array(
-						'mandatory' => true,
-					),
-					'overridable' => array(),
-					'src' => array(
-						'blacklisted_value_regex' => '__amp_source_origin',
-						'value_url' => array(
-							'allow_relative' => true,
-							'protocol' => array(
-								'https',
-							),
-						),
-					),
-				),
-				'tag_spec' => array(
-					'requires_extension' => array(
-						'amp-bind',
-					),
-					'spec_name' => 'amp-state',
-					'spec_url' => 'https://www.ampproject.org/docs/reference/components/amp-bind',
-				),
-			),
-		),
-		'amp-sticky-ad' => array(
-			array(
-				'attr_spec_list' => array(
-					'media' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							1,
-						),
-					),
-					'disallowed_ancestor' => array(
-						'amp-app-banner',
-					),
-					'requires_extension' => array(
-						'amp-sticky-ad',
-					),
-					'unique' => true,
-				),
-			),
-		),
-		'amp-story' => array(
-			array(
-				'attr_spec_list' => array(
-					'background-audio' => array(
-						'value_url' => array(
-							'protocol' => array(
-								'http',
-								'https',
-							),
-						),
-					),
-					'bookend-config-src' => array(
-						'value_url' => array(
-							'protocol' => array(
-								'http',
-								'https',
-							),
-						),
-					),
-					'poster-landscape-src' => array(
-						'value_url' => array(
-							'protocol' => array(
-								'http',
-								'https',
-							),
-						),
-					),
-					'poster-portrait-src' => array(
-						'mandatory' => true,
-						'value_url' => array(
-							'protocol' => array(
-								'http',
-								'https',
-							),
-						),
-					),
-					'poster-square-src' => array(
-						'value_url' => array(
-							'protocol' => array(
-								'http',
-								'https',
-							),
-						),
-					),
-					'publisher' => array(
-						'mandatory' => true,
-					),
-					'publisher-logo-src' => array(
-						'mandatory' => true,
-						'value_url' => array(
-							'protocol' => array(
-								'http',
-								'https',
-							),
-						),
-					),
-					'standalone' => array(
-						'mandatory' => true,
-						'value' => array(
-							'',
-						),
-					),
-					'title' => array(
-						'mandatory' => true,
-					),
-				),
-				'tag_spec' => array(
-					'mandatory_parent' => 'body',
-					'requires_extension' => array(
-						'amp-story',
-					),
-				),
-			),
-		),
-		'amp-story-access' => array(
-			array(
-				'attr_spec_list' => array(
-					'media' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'type' => array(
-						'value' => array(
-							'blocking',
-							'notification',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'mandatory_parent' => 'amp-story',
-					'requires_extension' => array(
-						'amp-access',
-					),
-				),
-			),
-		),
-		'amp-story-auto-ads' => array(
-			array(
-				'attr_spec_list' => array(),
-				'tag_spec' => array(
-					'mandatory_parent' => 'amp-story',
-					'requires_extension' => array(
-						'amp-story-auto-ads',
-					),
-					'spec_url' => 'https://github.com/ampproject/amphtml/blob/master/extensions/amp-story/amp-story-auto-ads.md',
-					'unique' => true,
-				),
-			),
-		),
-		'amp-story-bookend' => array(
-			array(
-				'attr_spec_list' => array(
-					'layout' => array(
-						'mandatory' => true,
-						'value' => array(
-							'nodisplay',
-						),
-					),
-					'src' => array(
-						'value_url' => array(
-							'protocol' => array(
-								'http',
-								'https',
-							),
-						),
-					),
-				),
-				'tag_spec' => array(
-					'mandatory_ancestor' => 'amp-story',
-				),
-			),
-		),
-		'amp-story-consent' => array(
-			array(
-				'attr_spec_list' => array(
-					'id' => array(
-						'mandatory' => true,
-					),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							1,
-						),
-					),
-					'mandatory_parent' => 'amp-consent',
-					'requires_extension' => array(
-						'amp-consent',
-						'amp-story',
-					),
-				),
-			),
-		),
-		'amp-story-cta-layer' => array(
-			array(
-				'attr_spec_list' => array(),
-				'tag_spec' => array(
-					'mandatory_ancestor' => 'amp-story-page',
-					'reference_points' => array(
-						'AMP-STORY-CTA-LAYER animate-in' => array(
-							'mandatory' => false,
-							'unique' => false,
-						),
-					),
-				),
-			),
-		),
-		'amp-story-grid-layer' => array(
-			array(
-				'attr_spec_list' => array(
-					'template' => array(
-						'mandatory' => true,
-						'value' => array(
-							'fill',
-							'horizontal',
-							'thirds',
-							'vertical',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'mandatory_ancestor' => 'amp-story-page',
-					'reference_points' => array(
-						'AMP-STORY-GRID-LAYER animate-in' => array(
-							'mandatory' => false,
-							'unique' => false,
-						),
-						'AMP-STORY-GRID-LAYER default' => array(
-							'mandatory' => false,
-							'unique' => false,
-						),
-					),
-				),
-			),
-		),
-		'amp-story-page' => array(
-			array(
-				'attr_spec_list' => array(
-					'auto-advance-after' => array(),
-					'background-audio' => array(
-						'value_url' => array(
-							'protocol' => array(
-								'http',
-								'https',
-							),
-						),
-					),
-					'id' => array(
-						'mandatory' => true,
-					),
-				),
-				'tag_spec' => array(
-					'mandatory_parent' => 'amp-story',
-					'requires_extension' => array(
-						'amp-story',
-					),
-				),
-			),
-		),
-		'amp-timeago' => array(
-			array(
-				'attr_spec_list' => array(
-					'[datetime]' => array(),
-					'[title]' => array(),
-					'cutoff' => array(
-						'value_regex' => '\\d+',
-					),
-					'datetime' => array(
-						'mandatory' => true,
-						'value_regex' => '\\d{4}-[01]\\d-[0-3]\\dT[0-2]\\d:[0-5]\\d(:[0-5]\\d(\\.\\d+)?)?(Z|[+-][0-1][0-9]:[0-5][0-9])',
-					),
-					'locale' => array(),
-					'media' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							2,
-							3,
-							4,
-						),
-					),
-					'requires_extension' => array(
-						'amp-timeago',
-					),
-					'spec_url' => 'https://www.ampproject.org/docs/reference/components/amp-timeago',
-				),
-			),
-		),
-		'amp-twitter' => array(
-			array(
-				'attr_spec_list' => array(
-					'data-cards' => array(),
-					'data-conversation' => array(),
-					'data-limit' => array(),
-					'data-link-color' => array(),
-					'data-momentid' => array(
-						'value_regex' => '\\d+',
-					),
-					'data-theme' => array(),
-					'data-timeline-id' => array(
-						'value_regex' => '\\d+',
-					),
-					'data-timeline-owner-screen-name' => array(),
-					'data-timeline-screen-name' => array(),
-					'data-timeline-slug' => array(),
-					'data-timeline-source-type' => array(),
-					'data-timeline-url' => array(
-						'value_url' => array(
-							'allow_relative' => false,
-							'protocol' => array(
-								'http',
-								'https',
-							),
-						),
-					),
-					'data-timeline-user-id' => array(
-						'value_regex' => '\\d+',
-					),
-					'data-tweetid' => array(),
-					'media' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							6,
-							2,
-							3,
-							7,
-							9,
-							1,
-							4,
-						),
-					),
-					'requires_extension' => array(
-						'amp-twitter',
-					),
-				),
-			),
-		),
-		'amp-user-notification' => array(
-			array(
-				'attr_spec_list' => array(
-					'data-dismiss-href' => array(
-						'value_url' => array(
-							'allow_empty' => false,
-							'allow_relative' => false,
-							'protocol' => array(
-								'https',
-							),
-						),
-					),
-					'data-show-if-href' => array(
-						'value_url' => array(
-							'allow_empty' => false,
-							'allow_relative' => false,
-							'protocol' => array(
-								'https',
-							),
-						),
-					),
-					'enctype' => array(
-						'value' => array(
-							'application/x-www-form-urlencoded',
-						),
-					),
-					'media' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							1,
-						),
-					),
-					'requires_extension' => array(
-						'amp-user-notification',
-					),
-				),
-			),
-		),
-		'amp-video' => array(
-			array(
-				'attr_spec_list' => array(
-					'[album]' => array(),
-					'[alt]' => array(),
-					'[artist]' => array(),
-					'[artwork]' => array(),
-					'[attribution]' => array(),
-					'[controls]' => array(),
-					'[controlslist]' => array(),
-					'[loop]' => array(),
-					'[poster]' => array(),
-					'[preload]' => array(),
-					'[src]' => array(),
-					'[title]' => array(),
-					'album' => array(),
-					'alt' => array(),
-					'artist' => array(),
-					'artwork' => array(),
-					'attribution' => array(),
-					'autoplay' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'controls' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'controlslist' => array(),
-					'crossorigin' => array(),
-					'disableremoteplayback' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'dock' => array(),
-					'lightbox' => array(),
-					'lightbox-thumbnail-id' => array(
-						'value_regex_casei' => '^[a-z][a-z\\d_-]*',
-					),
-					'loop' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'media' => array(),
-					'muted' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'noaudio' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'placeholder' => array(),
-					'poster' => array(),
-					'preload' => array(
-						'value' => array(
-							'auto',
-							'metadata',
-							'none',
-							'',
-						),
-					),
-					'rotate-to-fullscreen' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'src' => array(
-						'blacklisted_value_regex' => '__amp_source_origin',
-						'value_url' => array(
-							'allow_relative' => true,
-							'protocol' => array(
-								'https',
-							),
-						),
-					),
-				),
-				'tag_spec' => array(
-					'also_requires_tag_warning' => array(
-						'amp-video extension .js script',
-					),
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							6,
-							2,
-							3,
-							7,
-							1,
-							4,
-						),
-					),
-					'disallowed_ancestor' => array(
-						'amp-story',
-					),
-					'spec_url' => 'https://www.ampproject.org/docs/reference/components/amp-video',
-				),
-			),
-			array(
-				'attr_spec_list' => array(
-					'[album]' => array(),
-					'[alt]' => array(),
-					'[artist]' => array(),
-					'[artwork]' => array(),
-					'[attribution]' => array(),
-					'[controls]' => array(),
-					'[controlslist]' => array(),
-					'[loop]' => array(),
-					'[poster]' => array(),
-					'[preload]' => array(),
-					'[src]' => array(),
-					'[title]' => array(),
-					'album' => array(),
-					'alt' => array(),
-					'artist' => array(),
-					'artwork' => array(),
-					'attribution' => array(),
-					'autoplay' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'controls' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'controlslist' => array(),
-					'crossorigin' => array(),
-					'disableremoteplayback' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'dock' => array(),
-					'loop' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'media' => array(),
-					'muted' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'noaudio' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'placeholder' => array(),
-					'poster' => array(
-						'mandatory' => true,
-					),
-					'preload' => array(
-						'value' => array(
-							'auto',
-							'metadata',
-							'none',
-							'',
-						),
-					),
-					'rotate-to-fullscreen' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'src' => array(
-						'blacklisted_value_regex' => '__amp_source_origin',
-						'value_url' => array(
-							'allow_relative' => true,
-							'protocol' => array(
-								'https',
-							),
-						),
-					),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							6,
-							2,
-							3,
-							7,
-							1,
-							4,
-						),
-					),
-					'mandatory_ancestor' => 'amp-story',
-					'requires_extension' => array(
-						'amp-video',
-					),
-					'spec_name' => 'amp-story >> amp-video',
-					'spec_url' => 'https://www.ampproject.org/docs/reference/components/amp-video',
-				),
-			),
-		),
-		'amp-vimeo' => array(
-			array(
-				'attr_spec_list' => array(
-					'autoplay' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'data-videoid' => array(
-						'mandatory' => true,
-						'value_regex' => '[0-9]+',
-					),
-					'media' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							6,
-							2,
-							3,
-							7,
-							4,
-						),
-					),
-					'requires_extension' => array(
-						'amp-vimeo',
-					),
-				),
-			),
-		),
-		'amp-vine' => array(
-			array(
-				'attr_spec_list' => array(
-					'data-vineid' => array(
-						'mandatory' => true,
-					),
-					'media' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							6,
-							2,
-							3,
-							7,
-							1,
-							4,
-						),
-					),
-					'requires_extension' => array(
-						'amp-vine',
-					),
-				),
-			),
-		),
-		'amp-viqeo-player' => array(
-			array(
-				'attr_spec_list' => array(
-					'autoplay' => array(),
-					'data-profileid' => array(
-						'mandatory' => true,
-						'value_regex' => '[0-9a-f]*',
-					),
-					'data-videoid' => array(
-						'mandatory' => true,
-					),
-					'media' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							6,
-							2,
-							3,
-							7,
-							4,
-						),
-					),
-					'requires_extension' => array(
-						'amp-viqeo-player',
-					),
-				),
-			),
-		),
-		'amp-vk' => array(
-			array(
-				'attr_spec_list' => array(
-					'data-embedtype' => array(
-						'mandatory' => true,
-					),
-					'media' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							2,
-							7,
-							4,
-						),
-					),
-					'requires_extension' => array(
-						'amp-vk',
-					),
-				),
-			),
-		),
-		'amp-web-push' => array(
-			array(
-				'attr_spec_list' => array(
-					'helper-iframe-url' => array(
-						'mandatory' => true,
-						'value_url' => array(
-							'allow_relative' => false,
-							'protocol' => array(
-								'https',
-							),
-						),
-					),
-					'id' => array(
-						'mandatory' => true,
-						'value' => array(
-							'amp-web-push',
-						),
-					),
-					'media' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'permission-dialog-url' => array(
-						'mandatory' => true,
-						'value_url' => array(
-							'allow_relative' => false,
-							'protocol' => array(
-								'https',
-							),
-						),
-					),
-					'service-worker-url' => array(
-						'mandatory' => true,
-						'value_url' => array(
-							'allow_relative' => false,
-							'protocol' => array(
-								'https',
-							),
-						),
-					),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							1,
-						),
-					),
-					'requires_extension' => array(
-						'amp-web-push',
-					),
-					'spec_url' => 'https://www.ampproject.org/docs/reference/components/amp-web-push',
-				),
-			),
-		),
-		'amp-web-push-widget' => array(
-			array(
-				'attr_spec_list' => array(
-					'media' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'visibility' => array(
-						'mandatory' => true,
-						'value' => array(
-							'blocked',
-							'subscribed',
-							'unsubscribed',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							2,
-						),
-					),
-					'requires_extension' => array(
-						'amp-web-push',
-					),
-					'spec_url' => 'https://www.ampproject.org/docs/reference/components/amp-web-push',
-				),
-			),
-		),
-		'amp-wistia-player' => array(
-			array(
-				'attr_spec_list' => array(
-					'data-media-hashed-id' => array(
-						'mandatory' => true,
-						'value_regex' => '[0-9a-zA-Z]+',
-					),
-					'media' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'rotate-to-fullscreen' => array(
-						'value' => array(
-							'',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							6,
-							2,
-							3,
-							7,
-							4,
-						),
-					),
-					'requires_extension' => array(
-						'amp-wistia-player',
-					),
-				),
-			),
-		),
-		'amp-yotpo' => array(
-			array(
-				'attr_spec_list' => array(
-					'data-app-key' => array(
-						'mandatory' => true,
-					),
-					'data-widget-type' => array(
-						'mandatory' => true,
-					),
-					'media' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							6,
-							2,
-							3,
-							7,
-							1,
-							4,
-						),
-					),
-					'requires_extension' => array(
-						'amp-yotpo',
-					),
-					'spec_url' => 'https://www.ampproject.org/docs/reference/components/amp-yotpo',
-				),
-			),
-		),
-		'amp-youtube' => array(
-			array(
-				'attr_spec_list' => array(
-					'[data-videoid]' => array(),
-					'autoplay' => array(),
-					'credentials' => array(
-						'value_casei' => array(
-							'include',
-							'omit',
-						),
-					),
-					'data-live-channelid' => array(
-						'value_regex' => '[^=/?:]+',
-					),
-					'data-videoid' => array(
-						'value_regex' => '[^=/?:]+',
-					),
-					'lightbox' => array(),
-					'lightbox-thumbnail-id' => array(
-						'value_regex_casei' => '^[a-z][a-z\\d_-]*',
-					),
-					'media' => array(),
-					'noloading' => array(
-						'value' => array(
-							'',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'amp_layout' => array(
-						'supported_layouts' => array(
-							6,
-							2,
-							3,
-							7,
-							1,
-							4,
-						),
-					),
-					'requires_extension' => array(
-						'amp-youtube',
-					),
-				),
-			),
-		),
-		'article' => array(
-			array(
-				'attr_spec_list' => array(),
-				'tag_spec' => array(),
-			),
-		),
-		'aside' => array(
-			array(
-				'attr_spec_list' => array(),
-				'tag_spec' => array(),
-			),
-		),
-		'audio' => array(
-			array(
-				'attr_spec_list' => array(
-					'autoplay' => array(),
-					'controls' => array(),
-					'loop' => array(),
-					'muted' => array(),
-					'preload' => array(),
-					'src' => array(
-						'blacklisted_value_regex' => '__amp_source_origin',
-						'value_url' => array(
-							'allow_relative' => false,
-							'protocol' => array(
-								'data',
-								'https',
-							),
-						),
-					),
-				),
-				'tag_spec' => array(
-					'mandatory_ancestor' => 'noscript',
-					'mandatory_ancestor_suggested_alternative' => 'amp-audio',
-					'spec_url' => 'https://www.ampproject.org/docs/reference/components/amp-audio',
-				),
-			),
-		),
-		'b' => array(
-			array(
-				'attr_spec_list' => array(),
-				'tag_spec' => array(),
-			),
-		),
-		'base' => array(
-			array(
-				'attr_spec_list' => array(
-					'href' => array(
-						'value' => array(
-							'/',
-						),
-					),
-					'target' => array(
-						'value_casei' => array(
-							'_blank',
-							'_self',
-							'_top',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'mandatory_parent' => 'head',
-					'unique' => true,
-				),
-			),
-		),
-		'bdi' => array(
-			array(
-				'attr_spec_list' => array(),
-				'tag_spec' => array(),
-			),
-		),
-		'bdo' => array(
-			array(
-				'attr_spec_list' => array(
-					'dir' => array(),
-				),
-				'tag_spec' => array(),
-			),
-		),
-		'big' => array(
-			array(
-				'attr_spec_list' => array(),
-				'tag_spec' => array(),
-			),
-		),
-		'blockquote' => array(
-			array(
-				'attr_spec_list' => array(
-					'align' => array(),
-					'cite' => array(
-						'blacklisted_value_regex' => '__amp_source_origin',
-						'value_url' => array(
-							'allow_empty' => true,
-							'protocol' => array(
-								'http',
-								'https',
-							),
-						),
-					),
-				),
-				'tag_spec' => array(),
-			),
-		),
-		'body' => array(
-			array(
-				'attr_spec_list' => array(),
-				'tag_spec' => array(
-					'mandatory' => true,
-					'mandatory_parent' => 'html',
-					'spec_url' => 'https://www.ampproject.org/docs/reference/spec#required-markup',
-					'unique' => true,
-				),
-			),
-		),
-		'br' => array(
-			array(
-				'attr_spec_list' => array(),
-				'tag_spec' => array(),
-			),
-		),
-		'button' => array(
-			array(
-				'attr_spec_list' => array(
-					'[disabled]' => array(),
-					'[type]' => array(),
-					'[value]' => array(),
-					'disabled' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'name' => array(
-						'blacklisted_value_regex' => '(^|\\s)(__amp_\\S*|__count__|__defineGetter__|__defineSetter__|__lookupGetter__|__lookupSetter__|__noSuchMethod__|__parent__|__proto__|__AMP_\\S*|\\$p|\\$proxy|acceptCharset|addEventListener|appendChild|assignedSlot|attachShadow|baseURI|checkValidity|childElementCount|childNodes|classList|className|clientHeight|clientLeft|clientTop|clientWidth|compareDocumentPosition|computedName|computedRole|contentEditable|createShadowRoot|enqueAction|firstChild|firstElementChild|getAnimations|getAttribute|getAttributeNS|getAttributeNode|getAttributeNodeNS|getBoundingClientRect|getClientRects|getDestinationInsertionPoints|getElementsByClassName|getElementsByTagName|getElementsByTagNameNS|getRootNode|hasAttribute|hasAttributeNS|hasAttributes|hasChildNodes|hasPointerCapture|innerHTML|innerText|inputMode|insertAdjacentElement|insertAdjacentHTML|insertAdjacentText|isContentEditable|isDefaultNamespace|isEqualNode|isSameNode|lastChild|lastElementChild|lookupNamespaceURI|namespaceURI|nextElementSibling|nextSibling|nodeName|nodeType|nodeValue|offsetHeight|offsetLeft|offsetParent|offsetTop|offsetWidth|outerHTML|outerText|ownerDocument|parentElement|parentNode|previousElementSibling|previousSibling|querySelector|querySelectorAll|releasePointerCapture|removeAttribute|removeAttributeNS|removeAttributeNode|removeChild|removeEventListener|replaceChild|reportValidity|requestPointerLock|scrollHeight|scrollIntoView|scrollIntoViewIfNeeded|scrollLeft|scrollWidth|setAttribute|setAttributeNS|setAttributeNode|setAttributeNodeNS|setPointerCapture|shadowRoot|styleMap|tabIndex|tagName|textContent|toString|valueOf|(webkit|ms|moz|o)dropzone|(webkit|moz|ms|o)MatchesSelector|(webkit|moz|ms|o)RequestFullScreen|(webkit|moz|ms|o)RequestFullscreen)(\\s|$)',
-					),
-					'role' => array(),
-					'tabindex' => array(),
-					'type' => array(),
-					'value' => array(),
-				),
-				'tag_spec' => array(),
-			),
-			array(
-				'attr_spec_list' => array(
-					'name' => array(
-						'blacklisted_value_regex' => '(^|\\s)(__amp_\\S*|__count__|__defineGetter__|__defineSetter__|__lookupGetter__|__lookupSetter__|__noSuchMethod__|__parent__|__proto__|__AMP_\\S*|\\$p|\\$proxy|acceptCharset|addEventListener|appendChild|assignedSlot|attachShadow|baseURI|checkValidity|childElementCount|childNodes|classList|className|clientHeight|clientLeft|clientTop|clientWidth|compareDocumentPosition|computedName|computedRole|contentEditable|createShadowRoot|enqueAction|firstChild|firstElementChild|getAnimations|getAttribute|getAttributeNS|getAttributeNode|getAttributeNodeNS|getBoundingClientRect|getClientRects|getDestinationInsertionPoints|getElementsByClassName|getElementsByTagName|getElementsByTagNameNS|getRootNode|hasAttribute|hasAttributeNS|hasAttributes|hasChildNodes|hasPointerCapture|innerHTML|innerText|inputMode|insertAdjacentElement|insertAdjacentHTML|insertAdjacentText|isContentEditable|isDefaultNamespace|isEqualNode|isSameNode|lastChild|lastElementChild|lookupNamespaceURI|namespaceURI|nextElementSibling|nextSibling|nodeName|nodeType|nodeValue|offsetHeight|offsetLeft|offsetParent|offsetTop|offsetWidth|outerHTML|outerText|ownerDocument|parentElement|parentNode|previousElementSibling|previousSibling|querySelector|querySelectorAll|releasePointerCapture|removeAttribute|removeAttributeNS|removeAttributeNode|removeChild|removeEventListener|replaceChild|reportValidity|requestPointerLock|scrollHeight|scrollIntoView|scrollIntoViewIfNeeded|scrollLeft|scrollWidth|setAttribute|setAttributeNS|setAttributeNode|setAttributeNodeNS|setPointerCapture|shadowRoot|styleMap|tabIndex|tagName|textContent|toString|valueOf|(webkit|ms|moz|o)dropzone|(webkit|moz|ms|o)MatchesSelector|(webkit|moz|ms|o)RequestFullScreen|(webkit|moz|ms|o)RequestFullscreen)(\\s|$)',
-					),
-					'open-button' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'role' => array(),
-					'tabindex' => array(),
-					'type' => array(),
-					'value' => array(),
-				),
-				'tag_spec' => array(
-					'mandatory_ancestor' => 'amp-app-banner',
-					'spec_name' => 'amp-app-banner button[open-button]',
-				),
-			),
-		),
-		'caption' => array(
-			array(
-				'attr_spec_list' => array(),
-				'tag_spec' => array(),
-			),
-		),
-		'center' => array(
-			array(
-				'attr_spec_list' => array(),
-				'tag_spec' => array(),
-			),
-		),
-		'circle' => array(
-			array(
-				'attr_spec_list' => array(
-					'alignment-baseline' => array(),
-					'baseline-shift' => array(),
-					'clip' => array(),
-					'clip-path' => array(),
-					'clip-rule' => array(),
-					'color' => array(),
-					'color-interpolation' => array(),
-					'color-interpolation-filters' => array(),
-					'color-profile' => array(),
-					'color-rendering' => array(),
-					'cursor' => array(),
-					'cx' => array(),
-					'cy' => array(),
-					'direction' => array(),
-					'display' => array(),
-					'dominant-baseline' => array(),
-					'enable-background' => array(),
-					'externalresourcesrequired' => array(),
-					'fill' => array(),
-					'fill-opacity' => array(),
-					'fill-rule' => array(),
-					'filter' => array(),
-					'flood-color' => array(),
-					'flood-opacity' => array(),
-					'focusable' => array(),
-					'font-family' => array(),
-					'font-size' => array(),
-					'font-size-adjust' => array(),
-					'font-stretch' => array(),
-					'font-style' => array(),
-					'font-variant' => array(),
-					'font-weight' => array(),
-					'glyph-orientation-horizontal' => array(),
-					'glyph-orientation-vertical' => array(),
-					'image-rendering' => array(),
-					'kerning' => array(),
-					'letter-spacing' => array(),
-					'lighting-color' => array(),
-					'marker-end' => array(),
-					'marker-mid' => array(),
-					'marker-start' => array(),
-					'mask' => array(),
-					'opacity' => array(),
-					'overflow' => array(),
-					'pointer-events' => array(),
-					'r' => array(),
-					'requiredextensions' => array(),
-					'requiredfeatures' => array(),
-					'shape-rendering' => array(),
-					'sketch:type' => array(),
-					'stop-color' => array(),
-					'stop-opacity' => array(),
-					'stroke' => array(),
-					'stroke-dasharray' => array(),
-					'stroke-dashoffset' => array(),
-					'stroke-linecap' => array(),
-					'stroke-linejoin' => array(),
-					'stroke-miterlimit' => array(),
-					'stroke-opacity' => array(),
-					'stroke-width' => array(),
-					'style' => array(
-						'blacklisted_value_regex' => '!important',
-					),
-					'systemlanguage' => array(),
-					'text-anchor' => array(),
-					'text-decoration' => array(),
-					'text-rendering' => array(),
-					'transform' => array(),
-					'unicode-bidi' => array(),
-					'vector-effect' => array(),
-					'visibility' => array(),
-					'word-spacing' => array(),
-					'writing-mode' => array(),
-					'xml:lang' => array(),
-					'xml:space' => array(),
-					'xmlns' => array(),
-					'xmlns:xlink' => array(),
-				),
-				'tag_spec' => array(
-					'mandatory_ancestor' => 'svg',
-					'spec_url' => 'https://www.ampproject.org/docs/reference/spec#svg',
-				),
-			),
-		),
-		'cite' => array(
-			array(
-				'attr_spec_list' => array(),
-				'tag_spec' => array(),
-			),
-		),
-		'clippath' => array(
-			array(
-				'attr_spec_list' => array(
-					'alignment-baseline' => array(),
-					'baseline-shift' => array(),
-					'clip' => array(),
-					'clip-path' => array(),
-					'clip-rule' => array(),
-					'clippathunits' => array(),
-					'color' => array(),
-					'color-interpolation' => array(),
-					'color-interpolation-filters' => array(),
-					'color-profile' => array(),
-					'color-rendering' => array(),
-					'cursor' => array(),
-					'direction' => array(),
-					'display' => array(),
-					'dominant-baseline' => array(),
-					'enable-background' => array(),
-					'externalresourcesrequired' => array(),
-					'fill' => array(),
-					'fill-opacity' => array(),
-					'fill-rule' => array(),
-					'filter' => array(),
-					'flood-color' => array(),
-					'flood-opacity' => array(),
-					'focusable' => array(),
-					'font-family' => array(),
-					'font-size' => array(),
-					'font-size-adjust' => array(),
-					'font-stretch' => array(),
-					'font-style' => array(),
-					'font-variant' => array(),
-					'font-weight' => array(),
-					'glyph-orientation-horizontal' => array(),
-					'glyph-orientation-vertical' => array(),
-					'image-rendering' => array(),
-					'kerning' => array(),
-					'letter-spacing' => array(),
-					'lighting-color' => array(),
-					'marker-end' => array(),
-					'marker-mid' => array(),
-					'marker-start' => array(),
-					'mask' => array(),
-					'opacity' => array(),
-					'overflow' => array(),
-					'pointer-events' => array(),
-					'requiredextensions' => array(),
-					'requiredfeatures' => array(),
-					'shape-rendering' => array(),
-					'stop-color' => array(),
-					'stop-opacity' => array(),
-					'stroke' => array(),
-					'stroke-dasharray' => array(),
-					'stroke-dashoffset' => array(),
-					'stroke-linecap' => array(),
-					'stroke-linejoin' => array(),
-					'stroke-miterlimit' => array(),
-					'stroke-opacity' => array(),
-					'stroke-width' => array(),
-					'style' => array(
-						'blacklisted_value_regex' => '!important',
-					),
-					'systemlanguage' => array(),
-					'text-anchor' => array(),
-					'text-decoration' => array(),
-					'text-rendering' => array(),
-					'transform' => array(),
-					'unicode-bidi' => array(),
-					'vector-effect' => array(),
-					'visibility' => array(),
-					'word-spacing' => array(),
-					'writing-mode' => array(),
-					'xml:lang' => array(),
-					'xml:space' => array(),
-					'xmlns' => array(),
-					'xmlns:xlink' => array(),
-				),
-				'tag_spec' => array(
-					'mandatory_ancestor' => 'svg',
-					'spec_url' => 'https://www.ampproject.org/docs/reference/spec#svg',
-				),
-			),
-		),
-		'code' => array(
-			array(
-				'attr_spec_list' => array(),
-				'tag_spec' => array(),
-			),
-		),
-		'col' => array(
-			array(
-				'attr_spec_list' => array(
-					'span' => array(),
-				),
-				'tag_spec' => array(),
-			),
-		),
-		'colgroup' => array(
-			array(
-				'attr_spec_list' => array(
-					'span' => array(),
-				),
-				'tag_spec' => array(),
-			),
-		),
-		'data' => array(
-			array(
-				'attr_spec_list' => array(),
-				'tag_spec' => array(),
-			),
-		),
-		'datalist' => array(
-			array(
-				'attr_spec_list' => array(),
-				'tag_spec' => array(
-					'spec_url' => 'https://www.ampproject.org/docs/reference/components/amp-form',
-				),
-			),
-		),
-		'dd' => array(
-			array(
-				'attr_spec_list' => array(),
-				'tag_spec' => array(),
-			),
-		),
-		'defs' => array(
-			array(
-				'attr_spec_list' => array(
-					'alignment-baseline' => array(),
-					'baseline-shift' => array(),
-					'clip' => array(),
-					'clip-path' => array(),
-					'clip-rule' => array(),
-					'color' => array(),
-					'color-interpolation' => array(),
-					'color-interpolation-filters' => array(),
-					'color-profile' => array(),
-					'color-rendering' => array(),
-					'cursor' => array(),
-					'direction' => array(),
-					'display' => array(),
-					'dominant-baseline' => array(),
-					'enable-background' => array(),
-					'externalresourcesrequired' => array(),
-					'fill' => array(),
-					'fill-opacity' => array(),
-					'fill-rule' => array(),
-					'filter' => array(),
-					'flood-color' => array(),
-					'flood-opacity' => array(),
-					'focusable' => array(),
-					'font-family' => array(),
-					'font-size' => array(),
-					'font-size-adjust' => array(),
-					'font-stretch' => array(),
-					'font-style' => array(),
-					'font-variant' => array(),
-					'font-weight' => array(),
-					'glyph-orientation-horizontal' => array(),
-					'glyph-orientation-vertical' => array(),
-					'image-rendering' => array(),
-					'kerning' => array(),
-					'letter-spacing' => array(),
-					'lighting-color' => array(),
-					'marker-end' => array(),
-					'marker-mid' => array(),
-					'marker-start' => array(),
-					'mask' => array(),
-					'opacity' => array(),
-					'overflow' => array(),
-					'pointer-events' => array(),
-					'requiredextensions' => array(),
-					'requiredfeatures' => array(),
-					'shape-rendering' => array(),
-					'stop-color' => array(),
-					'stop-opacity' => array(),
-					'stroke' => array(),
-					'stroke-dasharray' => array(),
-					'stroke-dashoffset' => array(),
-					'stroke-linecap' => array(),
-					'stroke-linejoin' => array(),
-					'stroke-miterlimit' => array(),
-					'stroke-opacity' => array(),
-					'stroke-width' => array(),
-					'style' => array(
-						'blacklisted_value_regex' => '!important',
-					),
-					'systemlanguage' => array(),
-					'text-anchor' => array(),
-					'text-decoration' => array(),
-					'text-rendering' => array(),
-					'transform' => array(),
-					'unicode-bidi' => array(),
-					'vector-effect' => array(),
-					'visibility' => array(),
-					'word-spacing' => array(),
-					'writing-mode' => array(),
-					'xml:lang' => array(),
-					'xml:space' => array(),
-					'xmlns' => array(),
-					'xmlns:xlink' => array(),
-				),
-				'tag_spec' => array(
-					'mandatory_ancestor' => 'svg',
-					'spec_url' => 'https://www.ampproject.org/docs/reference/spec#svg',
-				),
-			),
-		),
-		'del' => array(
-			array(
-				'attr_spec_list' => array(
-					'cite' => array(
-						'blacklisted_value_regex' => '__amp_source_origin',
-						'value_url' => array(
-							'allow_empty' => true,
-							'protocol' => array(
-								'http',
-								'https',
-							),
-						),
-					),
-					'datetime' => array(),
-				),
-				'tag_spec' => array(),
-			),
-		),
-		'desc' => array(
-			array(
-				'attr_spec_list' => array(
-					'style' => array(
-						'blacklisted_value_regex' => '!important',
-					),
-					'xml:lang' => array(),
-					'xml:space' => array(),
-					'xmlns' => array(),
-					'xmlns:xlink' => array(),
-				),
-				'tag_spec' => array(
-					'mandatory_ancestor' => 'svg',
-					'spec_url' => 'https://www.ampproject.org/docs/reference/spec#svg',
-				),
-			),
-		),
-		'dfn' => array(
-			array(
-				'attr_spec_list' => array(),
-				'tag_spec' => array(),
-			),
-		),
-		'dir' => array(
-			array(
-				'attr_spec_list' => array(),
-				'tag_spec' => array(),
-			),
-		),
-		'div' => array(
-			array(
-				'attr_spec_list' => array(
-					'align' => array(),
-				),
-				'tag_spec' => array(),
-			),
-			array(
-				'attr_spec_list' => array(
-					'align' => array(),
-					'verify-error' => array(
-						'mandatory' => true,
-					),
-				),
-				'tag_spec' => array(
-					'mandatory_ancestor' => 'form',
-					'spec_name' => 'FORM DIV [verify-error]',
-				),
-			),
-			array(
-				'attr_spec_list' => array(
-					'align' => array(),
-					'template' => array(
-						'mandatory' => true,
-					),
-					'verify-error' => array(
-						'mandatory' => true,
-					),
-				),
-				'tag_spec' => array(
-					'mandatory_ancestor' => 'form',
-					'spec_name' => 'FORM DIV [verify-error][template]',
-				),
-			),
-			array(
-				'attr_spec_list' => array(
-					'align' => array(),
-					'submitting' => array(
-						'mandatory' => true,
-					),
-				),
-				'tag_spec' => array(
-					'mandatory_ancestor' => 'form',
-					'spec_name' => 'FORM DIV [submitting]',
-				),
-			),
-			array(
-				'attr_spec_list' => array(
-					'align' => array(),
-					'submitting' => array(
-						'mandatory' => true,
-					),
-					'template' => array(
-						'mandatory' => true,
-					),
-				),
-				'tag_spec' => array(
-					'mandatory_ancestor' => 'form',
-					'spec_name' => 'FORM DIV [submitting][template]',
-				),
-			),
-			array(
-				'attr_spec_list' => array(
-					'align' => array(),
-					'submit-success' => array(
-						'mandatory' => true,
-					),
-				),
-				'tag_spec' => array(
-					'mandatory_ancestor' => 'form',
-					'spec_name' => 'FORM DIV [submit-success]',
-				),
-			),
-			array(
-				'attr_spec_list' => array(
-					'align' => array(),
-					'submit-success' => array(
-						'mandatory' => true,
-					),
-					'template' => array(
-						'mandatory' => true,
-					),
-				),
-				'tag_spec' => array(
-					'mandatory_ancestor' => 'form',
-					'spec_name' => 'FORM DIV [submit-success][template]',
-				),
-			),
-			array(
-				'attr_spec_list' => array(
-					'align' => array(),
-					'submit-error' => array(
-						'mandatory' => true,
-					),
-				),
-				'tag_spec' => array(
-					'mandatory_ancestor' => 'form',
-					'spec_name' => 'FORM DIV [submit-error]',
-				),
-			),
-			array(
-				'attr_spec_list' => array(
-					'align' => array(),
-					'submit-error' => array(
-						'mandatory' => true,
-					),
-					'template' => array(
-						'mandatory' => true,
-					),
-				),
-				'tag_spec' => array(
-					'mandatory_ancestor' => 'form',
-					'spec_name' => 'FORM DIV [submit-error][template]',
-				),
-			),
-			array(
-				'attr_spec_list' => array(
-					'first' => array(
-						'mandatory' => true,
-					),
-				),
-				'tag_spec' => array(
-					'mandatory_parent' => 'amp-image-slider',
-					'spec_name' => 'AMP-IMAGE-SLIDER > DIV [first]',
-					'spec_url' => 'https://www.ampproject.org/docs/reference/components/amp-image-slider',
-				),
-			),
-			array(
-				'attr_spec_list' => array(
-					'second' => array(
-						'mandatory' => true,
-					),
-				),
-				'tag_spec' => array(
-					'mandatory_parent' => 'amp-image-slider',
-					'spec_name' => 'AMP-IMAGE-SLIDER > DIV [second]',
-					'spec_url' => 'https://www.ampproject.org/docs/reference/components/amp-image-slider',
-				),
-			),
-		),
-		'dl' => array(
-			array(
-				'attr_spec_list' => array(),
-				'tag_spec' => array(),
-			),
-		),
-		'dt' => array(
-			array(
-				'attr_spec_list' => array(),
-				'tag_spec' => array(),
-			),
-		),
-		'ellipse' => array(
-			array(
-				'attr_spec_list' => array(
-					'alignment-baseline' => array(),
-					'baseline-shift' => array(),
-					'clip' => array(),
-					'clip-path' => array(),
-					'clip-rule' => array(),
-					'color' => array(),
-					'color-interpolation' => array(),
-					'color-interpolation-filters' => array(),
-					'color-profile' => array(),
-					'color-rendering' => array(),
-					'cursor' => array(),
-					'cx' => array(),
-					'cy' => array(),
-					'direction' => array(),
-					'display' => array(),
-					'dominant-baseline' => array(),
-					'enable-background' => array(),
-					'externalresourcesrequired' => array(),
-					'fill' => array(),
-					'fill-opacity' => array(),
-					'fill-rule' => array(),
-					'filter' => array(),
-					'flood-color' => array(),
-					'flood-opacity' => array(),
-					'focusable' => array(),
-					'font-family' => array(),
-					'font-size' => array(),
-					'font-size-adjust' => array(),
-					'font-stretch' => array(),
-					'font-style' => array(),
-					'font-variant' => array(),
-					'font-weight' => array(),
-					'glyph-orientation-horizontal' => array(),
-					'glyph-orientation-vertical' => array(),
-					'image-rendering' => array(),
-					'kerning' => array(),
-					'letter-spacing' => array(),
-					'lighting-color' => array(),
-					'marker-end' => array(),
-					'marker-mid' => array(),
-					'marker-start' => array(),
-					'mask' => array(),
-					'opacity' => array(),
-					'overflow' => array(),
-					'pointer-events' => array(),
-					'requiredextensions' => array(),
-					'requiredfeatures' => array(),
-					'rx' => array(),
-					'ry' => array(),
-					'shape-rendering' => array(),
-					'sketch:type' => array(),
-					'stop-color' => array(),
-					'stop-opacity' => array(),
-					'stroke' => array(),
-					'stroke-dasharray' => array(),
-					'stroke-dashoffset' => array(),
-					'stroke-linecap' => array(),
-					'stroke-linejoin' => array(),
-					'stroke-miterlimit' => array(),
-					'stroke-opacity' => array(),
-					'stroke-width' => array(),
-					'style' => array(
-						'blacklisted_value_regex' => '!important',
-					),
-					'systemlanguage' => array(),
-					'text-anchor' => array(),
-					'text-decoration' => array(),
-					'text-rendering' => array(),
-					'transform' => array(),
-					'unicode-bidi' => array(),
-					'vector-effect' => array(),
-					'visibility' => array(),
-					'word-spacing' => array(),
-					'writing-mode' => array(),
-					'xml:lang' => array(),
-					'xml:space' => array(),
-					'xmlns' => array(),
-					'xmlns:xlink' => array(),
-				),
-				'tag_spec' => array(
-					'mandatory_ancestor' => 'svg',
-					'spec_url' => 'https://www.ampproject.org/docs/reference/spec#svg',
-				),
-			),
-		),
-		'em' => array(
-			array(
-				'attr_spec_list' => array(),
-				'tag_spec' => array(),
-			),
-		),
-		'fecolormatrix' => array(
-			array(
-				'attr_spec_list' => array(
-					'alignment-baseline' => array(),
-					'baseline-shift' => array(),
-					'clip' => array(),
-					'clip-path' => array(),
-					'clip-rule' => array(),
-					'color' => array(),
-					'color-interpolation' => array(),
-					'color-interpolation-filters' => array(),
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-					'color-rendering' => array(),
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-					'stroke-miterlimit' => array(),
-					'stroke-opacity' => array(),
-					'stroke-width' => array(),
-					'style' => array(
-						'blacklisted_value_regex' => '!important',
-					),
-					'text-anchor' => array(),
-					'text-decoration' => array(),
-					'text-rendering' => array(),
-					'unicode-bidi' => array(),
-					'vector-effect' => array(),
-					'visibility' => array(),
-					'width' => array(),
-					'word-spacing' => array(),
-					'writing-mode' => array(),
-					'x' => array(),
-					'xlink:actuate' => array(),
-					'xlink:arcrole' => array(),
-					'xlink:href' => array(
-						'alternative_names' => array(
-							'href',
-						),
-						'value_url' => array(
-							'allow_empty' => false,
-							'protocol' => array(
-								'http',
-								'https',
-							),
-						),
-					),
-					'xlink:role' => array(),
-					'xlink:show' => array(),
-					'xlink:title' => array(),
-					'xlink:type' => array(),
-					'xml:lang' => array(),
-					'xml:space' => array(),
-					'xmlns' => array(),
-					'xmlns:xlink' => array(),
-					'y' => array(),
-				),
-				'tag_spec' => array(
-					'mandatory_ancestor' => 'svg',
-					'spec_url' => 'https://www.ampproject.org/docs/reference/spec#svg',
-				),
-			),
-		),
-		'footer' => array(
-			array(
-				'attr_spec_list' => array(),
-				'tag_spec' => array(),
-			),
-		),
-		'form' => array(
-			array(
-				'attr_spec_list' => array(
-					'accept' => array(),
-					'accept-charset' => array(),
-					'action' => array(
-						'blacklisted_value_regex' => '__amp_source_origin',
-						'mandatory' => true,
-						'value_url' => array(
-							'protocol' => array(
-								'https',
-							),
-						),
-					),
-					'action-xhr' => array(
-						'blacklisted_value_regex' => '__amp_source_origin',
-						'value_url' => array(
-							'protocol' => array(
-								'https',
-							),
-						),
-					),
-					'autocomplete' => array(),
-					'custom-validation-reporting' => array(
-						'value' => array(
-							'as-you-go',
-							'interact-and-submit',
-							'show-all-on-submit',
-							'show-first-on-submit',
-						),
-					),
-					'enctype' => array(),
-					'method' => array(
-						'value_casei' => array(
-							'get',
-						),
-					),
-					'name' => array(),
-					'novalidate' => array(),
-					'target' => array(
-						'mandatory' => true,
-						'value_casei' => array(
-							'_blank',
-							'_top',
-						),
-					),
-					'verify-xhr' => array(
-						'blacklisted_value_regex' => '__amp_source_origin',
-						'value_url' => array(
-							'protocol' => array(
-								'https',
-							),
-						),
-					),
-				),
-				'tag_spec' => array(
-					'disallowed_ancestor' => array(
-						'amp-app-banner',
-					),
-					'requires_extension' => array(
-						'amp-form',
-					),
-					'spec_name' => 'FORM [method=GET]',
-				),
-			),
-			array(
-				'attr_spec_list' => array(
-					'accept' => array(),
-					'accept-charset' => array(),
-					'action-xhr' => array(
-						'blacklisted_value_regex' => '__amp_source_origin',
-						'mandatory' => true,
-						'value_url' => array(
-							'protocol' => array(
-								'https',
-							),
-						),
-					),
-					'autocomplete' => array(),
-					'custom-validation-reporting' => array(
-						'value' => array(
-							'as-you-go',
-							'interact-and-submit',
-							'show-all-on-submit',
-							'show-first-on-submit',
-						),
-					),
-					'enctype' => array(),
-					'method' => array(
-						'dispatch_key' => 2,
-						'mandatory' => true,
-						'value_casei' => array(
-							'post',
-						),
-					),
-					'name' => array(),
-					'novalidate' => array(),
-					'target' => array(
-						'value_casei' => array(
-							'_blank',
-							'_top',
-						),
-					),
-					'verify-xhr' => array(
-						'blacklisted_value_regex' => '__amp_source_origin',
-						'value_url' => array(
-							'protocol' => array(
-								'https',
-							),
-						),
-					),
-				),
-				'tag_spec' => array(
-					'disallowed_ancestor' => array(
-						'amp-app-banner',
-					),
-					'requires_extension' => array(
-						'amp-form',
-					),
-					'spec_name' => 'FORM [method=POST]',
-				),
-			),
-		),
-		'g' => array(
-			array(
-				'attr_spec_list' => array(
-					'alignment-baseline' => array(),
-					'baseline-shift' => array(),
-					'clip' => array(),
-					'clip-path' => array(),
-					'clip-rule' => array(),
-					'color' => array(),
-					'color-interpolation' => array(),
-					'color-interpolation-filters' => array(),
-					'color-profile' => array(),
-					'color-rendering' => array(),
-					'cursor' => array(),
-					'direction' => array(),
-					'display' => array(),
-					'dominant-baseline' => array(),
-					'enable-background' => array(),
-					'externalresourcesrequired' => array(),
-					'fill' => array(),
-					'fill-opacity' => array(),
-					'fill-rule' => array(),
-					'filter' => array(),
-					'flood-color' => array(),
-					'flood-opacity' => array(),
-					'focusable' => array(),
-					'font-family' => array(),
-					'font-size' => array(),
-					'font-size-adjust' => array(),
-					'font-stretch' => array(),
-					'font-style' => array(),
-					'font-variant' => array(),
-					'font-weight' => array(),
-					'glyph-orientation-horizontal' => array(),
-					'glyph-orientation-vertical' => array(),
-					'image-rendering' => array(),
-					'kerning' => array(),
-					'letter-spacing' => array(),
-					'lighting-color' => array(),
-					'marker-end' => array(),
-					'marker-mid' => array(),
-					'marker-start' => array(),
-					'mask' => array(),
-					'opacity' => array(),
-					'overflow' => array(),
-					'pointer-events' => array(),
-					'requiredextensions' => array(),
-					'requiredfeatures' => array(),
-					'shape-rendering' => array(),
-					'stop-color' => array(),
-					'stop-opacity' => array(),
-					'stroke' => array(),
-					'stroke-dasharray' => array(),
-					'stroke-dashoffset' => array(),
-					'stroke-linecap' => array(),
-					'stroke-linejoin' => array(),
-					'stroke-miterlimit' => array(),
-					'stroke-opacity' => array(),
-					'stroke-width' => array(),
-					'style' => array(
-						'blacklisted_value_regex' => '!important',
-					),
-					'systemlanguage' => array(),
-					'text-anchor' => array(),
-					'text-decoration' => array(),
-					'text-rendering' => array(),
-					'transform' => array(),
-					'unicode-bidi' => array(),
-					'vector-effect' => array(),
-					'visibility' => array(),
-					'word-spacing' => array(),
-					'writing-mode' => array(),
-					'xml:lang' => array(),
-					'xml:space' => array(),
-					'xmlns' => array(),
-					'xmlns:xlink' => array(),
-				),
-				'tag_spec' => array(
-					'mandatory_ancestor' => 'svg',
-					'spec_url' => 'https://www.ampproject.org/docs/reference/spec#svg',
-				),
-			),
-		),
-		'glyph' => array(
-			array(
-				'attr_spec_list' => array(
-					'alignment-baseline' => array(),
-					'arabic-form' => array(),
-					'baseline-shift' => array(),
-					'clip' => array(),
-					'clip-path' => array(),
-					'clip-rule' => array(),
-					'color' => array(),
-					'color-interpolation' => array(),
-					'color-interpolation-filters' => array(),
-					'color-profile' => array(),
-					'color-rendering' => array(),
-					'cursor' => array(),
-					'd' => array(),
-					'direction' => array(),
-					'display' => array(),
-					'dominant-baseline' => array(),
-					'enable-background' => array(),
-					'fill' => array(),
-					'fill-opacity' => array(),
-					'fill-rule' => array(),
-					'filter' => array(),
-					'flood-color' => array(),
-					'flood-opacity' => array(),
-					'focusable' => array(),
-					'font-family' => array(),
-					'font-size' => array(),
-					'font-size-adjust' => array(),
-					'font-stretch' => array(),
-					'font-style' => array(),
-					'font-variant' => array(),
-					'font-weight' => array(),
-					'glyph-name' => array(),
-					'glyph-orientation-horizontal' => array(),
-					'glyph-orientation-vertical' => array(),
-					'horiz-adv-x' => array(),
-					'image-rendering' => array(),
-					'kerning' => array(),
-					'letter-spacing' => array(),
-					'lighting-color' => array(),
-					'marker-end' => array(),
-					'marker-mid' => array(),
-					'marker-start' => array(),
-					'mask' => array(),
-					'opacity' => array(),
-					'orientation' => array(),
-					'overflow' => array(),
-					'pointer-events' => array(),
-					'shape-rendering' => array(),
-					'stop-color' => array(),
-					'stop-opacity' => array(),
-					'stroke' => array(),
-					'stroke-dasharray' => array(),
-					'stroke-dashoffset' => array(),
-					'stroke-linecap' => array(),
-					'stroke-linejoin' => array(),
-					'stroke-miterlimit' => array(),
-					'stroke-opacity' => array(),
-					'stroke-width' => array(),
-					'style' => array(
-						'blacklisted_value_regex' => '!important',
-					),
-					'text-anchor' => array(),
-					'text-decoration' => array(),
-					'text-rendering' => array(),
-					'unicode' => array(),
-					'unicode-bidi' => array(),
-					'vector-effect' => array(),
-					'vert-adv-y' => array(),
-					'vert-origin-x' => array(),
-					'vert-origin-y' => array(),
-					'visibility' => array(),
-					'word-spacing' => array(),
-					'writing-mode' => array(),
-					'xml:lang' => array(),
-					'xml:space' => array(),
-					'xmlns' => array(),
-					'xmlns:xlink' => array(),
-				),
-				'tag_spec' => array(
-					'mandatory_ancestor' => 'svg',
-					'spec_url' => 'https://www.ampproject.org/docs/reference/spec#svg',
-				),
-			),
-		),
-		'glyphref' => array(
-			array(
-				'attr_spec_list' => array(
-					'alignment-baseline' => array(),
-					'baseline-shift' => array(),
-					'clip' => array(),
-					'clip-path' => array(),
-					'clip-rule' => array(),
-					'color' => array(),
-					'color-interpolation' => array(),
-					'color-interpolation-filters' => array(),
-					'color-profile' => array(),
-					'color-rendering' => array(),
-					'cursor' => array(),
-					'direction' => array(),
-					'display' => array(),
-					'dominant-baseline' => array(),
-					'dx' => array(),
-					'dy' => array(),
-					'enable-background' => array(),
-					'fill' => array(),
-					'fill-opacity' => array(),
-					'fill-rule' => array(),
-					'filter' => array(),
-					'flood-color' => array(),
-					'flood-opacity' => array(),
-					'focusable' => array(),
-					'font-family' => array(),
-					'font-size' => array(),
-					'font-size-adjust' => array(),
-					'font-stretch' => array(),
-					'font-style' => array(),
-					'font-variant' => array(),
-					'font-weight' => array(),
-					'format' => array(),
-					'glyph-orientation-horizontal' => array(),
-					'glyph-orientation-vertical' => array(),
-					'glyphref' => array(),
-					'image-rendering' => array(),
-					'kerning' => array(),
-					'letter-spacing' => array(),
-					'lighting-color' => array(),
-					'marker-end' => array(),
-					'marker-mid' => array(),
-					'marker-start' => array(),
-					'mask' => array(),
-					'opacity' => array(),
-					'overflow' => array(),
-					'pointer-events' => array(),
-					'shape-rendering' => array(),
-					'stop-color' => array(),
-					'stop-opacity' => array(),
-					'stroke' => array(),
-					'stroke-dasharray' => array(),
-					'stroke-dashoffset' => array(),
-					'stroke-linecap' => array(),
-					'stroke-linejoin' => array(),
-					'stroke-miterlimit' => array(),
-					'stroke-opacity' => array(),
-					'stroke-width' => array(),
-					'style' => array(
-						'blacklisted_value_regex' => '!important',
-					),
-					'text-anchor' => array(),
-					'text-decoration' => array(),
-					'text-rendering' => array(),
-					'unicode-bidi' => array(),
-					'vector-effect' => array(),
-					'visibility' => array(),
-					'word-spacing' => array(),
-					'writing-mode' => array(),
-					'x' => array(),
-					'xlink:actuate' => array(),
-					'xlink:arcrole' => array(),
-					'xlink:href' => array(
-						'alternative_names' => array(
-							'href',
-						),
-						'value_url' => array(
-							'allow_empty' => false,
-							'protocol' => array(
-								'http',
-								'https',
-							),
-						),
-					),
-					'xlink:role' => array(),
-					'xlink:show' => array(),
-					'xlink:title' => array(),
-					'xlink:type' => array(),
-					'xml:lang' => array(),
-					'xml:space' => array(),
-					'xmlns' => array(),
-					'xmlns:xlink' => array(),
-					'y' => array(),
-				),
-				'tag_spec' => array(
-					'mandatory_ancestor' => 'svg',
-					'spec_url' => 'https://www.ampproject.org/docs/reference/spec#svg',
-				),
-			),
-		),
-		'h1' => array(
-			array(
-				'attr_spec_list' => array(
-					'align' => array(),
-				),
-				'tag_spec' => array(),
-			),
-		),
-		'h2' => array(
-			array(
-				'attr_spec_list' => array(
-					'align' => array(),
-				),
-				'tag_spec' => array(),
-			),
-		),
-		'h3' => array(
-			array(
-				'attr_spec_list' => array(
-					'align' => array(),
-				),
-				'tag_spec' => array(),
-			),
-		),
-		'h4' => array(
-			array(
-				'attr_spec_list' => array(
-					'align' => array(),
-				),
-				'tag_spec' => array(),
-			),
-		),
-		'h5' => array(
-			array(
-				'attr_spec_list' => array(
-					'align' => array(),
-				),
-				'tag_spec' => array(),
-			),
-		),
-		'h6' => array(
-			array(
-				'attr_spec_list' => array(
-					'align' => array(),
-				),
-				'tag_spec' => array(),
-			),
-		),
-		'head' => array(
-			array(
-				'attr_spec_list' => array(),
-				'tag_spec' => array(
-					'mandatory' => true,
-					'mandatory_parent' => 'html',
-					'spec_url' => 'https://www.ampproject.org/docs/reference/spec#required-markup',
-					'unique' => true,
-				),
-			),
-		),
-		'header' => array(
-			array(
-				'attr_spec_list' => array(),
-				'tag_spec' => array(),
-			),
-		),
-		'hgroup' => array(
-			array(
-				'attr_spec_list' => array(),
-				'tag_spec' => array(),
-			),
-		),
-		'hkern' => array(
-			array(
-				'attr_spec_list' => array(
-					'g1' => array(),
-					'g2' => array(),
-					'k' => array(),
-					'style' => array(
-						'blacklisted_value_regex' => '!important',
-					),
-					'u1' => array(),
-					'u2' => array(),
-					'xml:lang' => array(),
-					'xml:space' => array(),
-					'xmlns' => array(),
-					'xmlns:xlink' => array(),
-				),
-				'tag_spec' => array(
-					'mandatory_ancestor' => 'svg',
-					'spec_url' => 'https://www.ampproject.org/docs/reference/spec#svg',
-				),
-			),
-		),
-		'hr' => array(
-			array(
-				'attr_spec_list' => array(),
-				'tag_spec' => array(),
-			),
-		),
-		'html' => array(
-			array(
-				'attr_spec_list' => array(),
-				'tag_spec' => array(
-					'mandatory' => true,
-					'mandatory_parent' => '!doctype',
-					'spec_url' => 'https://www.ampproject.org/docs/reference/spec#required-markup',
-					'unique' => true,
-				),
-			),
-		),
-		'i' => array(
-			array(
-				'attr_spec_list' => array(),
-				'tag_spec' => array(),
-			),
-		),
-		'iframe' => array(
-			array(
-				'attr_spec_list' => array(
-					'frameborder' => array(
-						'value' => array(
-							'0',
-							'1',
-						),
-					),
-					'height' => array(),
-					'name' => array(),
-					'referrerpolicy' => array(),
-					'resizable' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'sandbox' => array(),
-					'scrolling' => array(
-						'value' => array(
-							'auto',
-							'yes',
-							'no',
-						),
-					),
-					'src' => array(
-						'blacklisted_value_regex' => '__amp_source_origin',
-						'value_url' => array(
-							'allow_relative' => false,
-							'protocol' => array(
-								'data',
-								'https',
-							),
-						),
-					),
-					'srcdoc' => array(),
-					'width' => array(),
-				),
-				'tag_spec' => array(
-					'mandatory_ancestor' => 'noscript',
-					'mandatory_ancestor_suggested_alternative' => 'amp-iframe',
-					'spec_url' => 'https://www.ampproject.org/docs/reference/components/amp-iframe',
-				),
-			),
-		),
-		'image' => array(
-			array(
-				'attr_spec_list' => array(
-					'alignment-baseline' => array(),
-					'baseline-shift' => array(),
-					'clip' => array(),
-					'clip-path' => array(),
-					'clip-rule' => array(),
-					'color' => array(),
-					'color-interpolation' => array(),
-					'color-interpolation-filters' => array(),
-					'color-profile' => array(),
-					'color-rendering' => array(),
-					'cursor' => array(),
-					'direction' => array(),
-					'display' => array(),
-					'dominant-baseline' => array(),
-					'enable-background' => array(),
-					'externalresourcesrequired' => array(),
-					'fill' => array(),
-					'fill-opacity' => array(),
-					'fill-rule' => array(),
-					'filter' => array(),
-					'flood-color' => array(),
-					'flood-opacity' => array(),
-					'focusable' => array(),
-					'font-family' => array(),
-					'font-size' => array(),
-					'font-size-adjust' => array(),
-					'font-stretch' => array(),
-					'font-style' => array(),
-					'font-variant' => array(),
-					'font-weight' => array(),
-					'glyph-orientation-horizontal' => array(),
-					'glyph-orientation-vertical' => array(),
-					'height' => array(),
-					'image-rendering' => array(),
-					'kerning' => array(),
-					'letter-spacing' => array(),
-					'lighting-color' => array(),
-					'marker-end' => array(),
-					'marker-mid' => array(),
-					'marker-start' => array(),
-					'mask' => array(),
-					'opacity' => array(),
-					'overflow' => array(),
-					'pointer-events' => array(),
-					'preserveaspectratio' => array(),
-					'requiredextensions' => array(),
-					'requiredfeatures' => array(),
-					'shape-rendering' => array(),
-					'stop-color' => array(),
-					'stop-opacity' => array(),
-					'stroke' => array(),
-					'stroke-dasharray' => array(),
-					'stroke-dashoffset' => array(),
-					'stroke-linecap' => array(),
-					'stroke-linejoin' => array(),
-					'stroke-miterlimit' => array(),
-					'stroke-opacity' => array(),
-					'stroke-width' => array(),
-					'style' => array(
-						'blacklisted_value_regex' => '!important',
-					),
-					'systemlanguage' => array(),
-					'text-anchor' => array(),
-					'text-decoration' => array(),
-					'text-rendering' => array(),
-					'transform' => array(),
-					'unicode-bidi' => array(),
-					'vector-effect' => array(),
-					'visibility' => array(),
-					'width' => array(),
-					'word-spacing' => array(),
-					'writing-mode' => array(),
-					'x' => array(),
-					'xlink:actuate' => array(),
-					'xlink:arcrole' => array(),
-					'xlink:href' => array(
-						'alternative_names' => array(
-							'href',
-						),
-						'blacklisted_value_regex' => '(^|\\s)data:image\\/svg\\+xml',
-						'value_url' => array(
-							'allow_empty' => false,
-							'protocol' => array(
-								'data',
-								'http',
-								'https',
-							),
-						),
-					),
-					'xlink:role' => array(),
-					'xlink:show' => array(),
-					'xlink:title' => array(),
-					'xlink:type' => array(),
-					'xml:lang' => array(),
-					'xml:space' => array(),
-					'xmlns' => array(),
-					'xmlns:xlink' => array(),
-					'y' => array(),
-				),
-				'tag_spec' => array(
-					'mandatory_ancestor' => 'svg',
-					'spec_url' => 'https://www.ampproject.org/docs/reference/spec#svg',
-				),
-			),
-		),
-		'img' => array(
-			array(
-				'attr_spec_list' => array(
-					'alt' => array(),
-					'border' => array(),
-					'decoding' => array(
-						'value' => array(
-							'async',
-							'auto',
-							'sync',
-						),
-					),
-					'height' => array(),
-					'ismap' => array(),
-					'longdesc' => array(
-						'blacklisted_value_regex' => '__amp_source_origin',
-						'value_url' => array(
-							'protocol' => array(
-								'http',
-								'https',
-							),
-						),
-					),
-					'src' => array(
-						'alternative_names' => array(
-							'srcset',
-						),
-						'blacklisted_value_regex' => '__amp_source_origin',
-						'mandatory' => true,
-						'value_url' => array(
-							'allow_relative' => true,
-							'protocol' => array(
-								'data',
-								'https',
-							),
-						),
-					),
-					'width' => array(),
-				),
-				'tag_spec' => array(
-					'mandatory_ancestor' => 'noscript',
-					'mandatory_ancestor_suggested_alternative' => 'amp-img',
-					'spec_url' => 'https://www.ampproject.org/docs/reference/components/amp-img',
-				),
-			),
-		),
-		'input' => array(
-			array(
-				'attr_spec_list' => array(
-					'[accept]' => array(),
-					'[accesskey]' => array(),
-					'[autocomplete]' => array(),
-					'[checked]' => array(),
-					'[disabled]' => array(),
-					'[height]' => array(),
-					'[inputmode]' => array(),
-					'[max]' => array(),
-					'[maxlength]' => array(),
-					'[min]' => array(),
-					'[minlength]' => array(),
-					'[multiple]' => array(),
-					'[pattern]' => array(),
-					'[placeholder]' => array(),
-					'[readonly]' => array(),
-					'[required]' => array(),
-					'[selectiondirection]' => array(),
-					'[size]' => array(),
-					'[spellcheck]' => array(),
-					'[step]' => array(),
-					'[type]' => array(),
-					'[value]' => array(),
-					'[width]' => array(),
-					'accept' => array(),
-					'accesskey' => array(),
-					'autocomplete' => array(),
-					'autofocus' => array(),
-					'checked' => array(),
-					'disabled' => array(),
-					'height' => array(),
-					'inputmode' => array(),
-					'list' => array(),
-					'max' => array(),
-					'maxlength' => array(),
-					'min' => array(),
-					'minlength' => array(),
-					'multiple' => array(),
-					'name' => array(
-						'blacklisted_value_regex' => '(^|\\s)(__amp_\\S*|__count__|__defineGetter__|__defineSetter__|__lookupGetter__|__lookupSetter__|__noSuchMethod__|__parent__|__proto__|__AMP_\\S*|\\$p|\\$proxy|acceptCharset|addEventListener|appendChild|assignedSlot|attachShadow|baseURI|checkValidity|childElementCount|childNodes|classList|className|clientHeight|clientLeft|clientTop|clientWidth|compareDocumentPosition|computedName|computedRole|contentEditable|createShadowRoot|enqueAction|firstChild|firstElementChild|getAnimations|getAttribute|getAttributeNS|getAttributeNode|getAttributeNodeNS|getBoundingClientRect|getClientRects|getDestinationInsertionPoints|getElementsByClassName|getElementsByTagName|getElementsByTagNameNS|getRootNode|hasAttribute|hasAttributeNS|hasAttributes|hasChildNodes|hasPointerCapture|innerHTML|innerText|inputMode|insertAdjacentElement|insertAdjacentHTML|insertAdjacentText|isContentEditable|isDefaultNamespace|isEqualNode|isSameNode|lastChild|lastElementChild|lookupNamespaceURI|namespaceURI|nextElementSibling|nextSibling|nodeName|nodeType|nodeValue|offsetHeight|offsetLeft|offsetParent|offsetTop|offsetWidth|outerHTML|outerText|ownerDocument|parentElement|parentNode|previousElementSibling|previousSibling|querySelector|querySelectorAll|releasePointerCapture|removeAttribute|removeAttributeNS|removeAttributeNode|removeChild|removeEventListener|replaceChild|reportValidity|requestPointerLock|scrollHeight|scrollIntoView|scrollIntoViewIfNeeded|scrollLeft|scrollWidth|setAttribute|setAttributeNS|setAttributeNode|setAttributeNodeNS|setPointerCapture|shadowRoot|styleMap|tabIndex|tagName|textContent|toString|valueOf|(webkit|ms|moz|o)dropzone|(webkit|moz|ms|o)MatchesSelector|(webkit|moz|ms|o)RequestFullScreen|(webkit|moz|ms|o)RequestFullscreen)(\\s|$)',
-					),
-					'no-verify' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'pattern' => array(),
-					'placeholder' => array(),
-					'readonly' => array(),
-					'required' => array(),
-					'selectiondirection' => array(),
-					'size' => array(),
-					'spellcheck' => array(),
-					'step' => array(),
-					'tabindex' => array(),
-					'type' => array(
-						'blacklisted_value_regex' => '(^|\\s)(button|file|image|password|)(\\s|$)',
-					),
-					'value' => array(),
-					'width' => array(),
-				),
-				'tag_spec' => array(
-					'spec_url' => 'https://www.ampproject.org/docs/reference/components/amp-form',
-				),
-			),
-			array(
-				'attr_spec_list' => array(
-					'[accept]' => array(),
-					'[accesskey]' => array(),
-					'[autocomplete]' => array(),
-					'[checked]' => array(),
-					'[disabled]' => array(),
-					'[height]' => array(),
-					'[inputmode]' => array(),
-					'[max]' => array(),
-					'[maxlength]' => array(),
-					'[min]' => array(),
-					'[minlength]' => array(),
-					'[multiple]' => array(),
-					'[pattern]' => array(),
-					'[placeholder]' => array(),
-					'[readonly]' => array(),
-					'[required]' => array(),
-					'[selectiondirection]' => array(),
-					'[size]' => array(),
-					'[spellcheck]' => array(),
-					'[step]' => array(),
-					'[value]' => array(),
-					'[width]' => array(),
-					'accept' => array(),
-					'accesskey' => array(),
-					'autocomplete' => array(),
-					'autofocus' => array(),
-					'checked' => array(),
-					'disabled' => array(),
-					'height' => array(),
-					'inputmode' => array(),
-					'list' => array(),
-					'max' => array(),
-					'maxlength' => array(),
-					'min' => array(),
-					'minlength' => array(),
-					'multiple' => array(),
-					'name' => array(
-						'blacklisted_value_regex' => '(^|\\s)(__amp_\\S*|__count__|__defineGetter__|__defineSetter__|__lookupGetter__|__lookupSetter__|__noSuchMethod__|__parent__|__proto__|__AMP_\\S*|\\$p|\\$proxy|acceptCharset|addEventListener|appendChild|assignedSlot|attachShadow|baseURI|checkValidity|childElementCount|childNodes|classList|className|clientHeight|clientLeft|clientTop|clientWidth|compareDocumentPosition|computedName|computedRole|contentEditable|createShadowRoot|enqueAction|firstChild|firstElementChild|getAnimations|getAttribute|getAttributeNS|getAttributeNode|getAttributeNodeNS|getBoundingClientRect|getClientRects|getDestinationInsertionPoints|getElementsByClassName|getElementsByTagName|getElementsByTagNameNS|getRootNode|hasAttribute|hasAttributeNS|hasAttributes|hasChildNodes|hasPointerCapture|innerHTML|innerText|inputMode|insertAdjacentElement|insertAdjacentHTML|insertAdjacentText|isContentEditable|isDefaultNamespace|isEqualNode|isSameNode|lastChild|lastElementChild|lookupNamespaceURI|namespaceURI|nextElementSibling|nextSibling|nodeName|nodeType|nodeValue|offsetHeight|offsetLeft|offsetParent|offsetTop|offsetWidth|outerHTML|outerText|ownerDocument|parentElement|parentNode|previousElementSibling|previousSibling|querySelector|querySelectorAll|releasePointerCapture|removeAttribute|removeAttributeNS|removeAttributeNode|removeChild|removeEventListener|replaceChild|reportValidity|requestPointerLock|scrollHeight|scrollIntoView|scrollIntoViewIfNeeded|scrollLeft|scrollWidth|setAttribute|setAttributeNS|setAttributeNode|setAttributeNodeNS|setPointerCapture|shadowRoot|styleMap|tabIndex|tagName|textContent|toString|valueOf|(webkit|ms|moz|o)dropzone|(webkit|moz|ms|o)MatchesSelector|(webkit|moz|ms|o)RequestFullScreen|(webkit|moz|ms|o)RequestFullscreen)(\\s|$)',
-					),
-					'no-verify' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'pattern' => array(),
-					'placeholder' => array(),
-					'readonly' => array(),
-					'required' => array(),
-					'selectiondirection' => array(),
-					'size' => array(),
-					'spellcheck' => array(),
-					'step' => array(),
-					'tabindex' => array(),
-					'type' => array(
-						'dispatch_key' => 2,
-						'mandatory' => true,
-						'value_casei' => array(
-							'file',
-						),
-					),
-					'value' => array(),
-					'width' => array(),
-				),
-				'tag_spec' => array(
-					'mandatory_ancestor' => 'form [method=post]',
-					'spec_name' => 'INPUT [type=file]',
-					'spec_url' => 'https://www.ampproject.org/docs/reference/components/amp-form',
-				),
-			),
-			array(
-				'attr_spec_list' => array(
-					'[accept]' => array(),
-					'[accesskey]' => array(),
-					'[autocomplete]' => array(),
-					'[checked]' => array(),
-					'[disabled]' => array(),
-					'[height]' => array(),
-					'[inputmode]' => array(),
-					'[max]' => array(),
-					'[maxlength]' => array(),
-					'[min]' => array(),
-					'[minlength]' => array(),
-					'[multiple]' => array(),
-					'[pattern]' => array(),
-					'[placeholder]' => array(),
-					'[readonly]' => array(),
-					'[required]' => array(),
-					'[selectiondirection]' => array(),
-					'[size]' => array(),
-					'[spellcheck]' => array(),
-					'[step]' => array(),
-					'[value]' => array(),
-					'[width]' => array(),
-					'accept' => array(),
-					'accesskey' => array(),
-					'autocomplete' => array(),
-					'autofocus' => array(),
-					'checked' => array(),
-					'disabled' => array(),
-					'height' => array(),
-					'inputmode' => array(),
-					'list' => array(),
-					'max' => array(),
-					'maxlength' => array(),
-					'min' => array(),
-					'minlength' => array(),
-					'multiple' => array(),
-					'name' => array(
-						'blacklisted_value_regex' => '(^|\\s)(__amp_\\S*|__count__|__defineGetter__|__defineSetter__|__lookupGetter__|__lookupSetter__|__noSuchMethod__|__parent__|__proto__|__AMP_\\S*|\\$p|\\$proxy|acceptCharset|addEventListener|appendChild|assignedSlot|attachShadow|baseURI|checkValidity|childElementCount|childNodes|classList|className|clientHeight|clientLeft|clientTop|clientWidth|compareDocumentPosition|computedName|computedRole|contentEditable|createShadowRoot|enqueAction|firstChild|firstElementChild|getAnimations|getAttribute|getAttributeNS|getAttributeNode|getAttributeNodeNS|getBoundingClientRect|getClientRects|getDestinationInsertionPoints|getElementsByClassName|getElementsByTagName|getElementsByTagNameNS|getRootNode|hasAttribute|hasAttributeNS|hasAttributes|hasChildNodes|hasPointerCapture|innerHTML|innerText|inputMode|insertAdjacentElement|insertAdjacentHTML|insertAdjacentText|isContentEditable|isDefaultNamespace|isEqualNode|isSameNode|lastChild|lastElementChild|lookupNamespaceURI|namespaceURI|nextElementSibling|nextSibling|nodeName|nodeType|nodeValue|offsetHeight|offsetLeft|offsetParent|offsetTop|offsetWidth|outerHTML|outerText|ownerDocument|parentElement|parentNode|previousElementSibling|previousSibling|querySelector|querySelectorAll|releasePointerCapture|removeAttribute|removeAttributeNS|removeAttributeNode|removeChild|removeEventListener|replaceChild|reportValidity|requestPointerLock|scrollHeight|scrollIntoView|scrollIntoViewIfNeeded|scrollLeft|scrollWidth|setAttribute|setAttributeNS|setAttributeNode|setAttributeNodeNS|setPointerCapture|shadowRoot|styleMap|tabIndex|tagName|textContent|toString|valueOf|(webkit|ms|moz|o)dropzone|(webkit|moz|ms|o)MatchesSelector|(webkit|moz|ms|o)RequestFullScreen|(webkit|moz|ms|o)RequestFullscreen)(\\s|$)',
-					),
-					'pattern' => array(),
-					'placeholder' => array(),
-					'readonly' => array(),
-					'required' => array(),
-					'selectiondirection' => array(),
-					'size' => array(),
-					'spellcheck' => array(),
-					'step' => array(),
-					'tabindex' => array(),
-					'type' => array(
-						'dispatch_key' => 2,
-						'mandatory' => true,
-						'value_casei' => array(
-							'password',
-						),
-					),
-					'value' => array(),
-					'width' => array(),
-				),
-				'tag_spec' => array(
-					'mandatory_ancestor' => 'form [method=post]',
-					'spec_name' => 'INPUT [type=password]',
-					'spec_url' => 'https://www.ampproject.org/docs/reference/components/amp-form',
-				),
-			),
-			array(
-				'attr_spec_list' => array(
-					'[accept]' => array(),
-					'[accesskey]' => array(),
-					'[autocomplete]' => array(),
-					'[checked]' => array(),
-					'[disabled]' => array(),
-					'[height]' => array(),
-					'[inputmode]' => array(),
-					'[max]' => array(),
-					'[maxlength]' => array(),
-					'[min]' => array(),
-					'[minlength]' => array(),
-					'[multiple]' => array(),
-					'[pattern]' => array(),
-					'[placeholder]' => array(),
-					'[readonly]' => array(),
-					'[required]' => array(),
-					'[selectiondirection]' => array(),
-					'[size]' => array(),
-					'[spellcheck]' => array(),
-					'[step]' => array(),
-					'[type]' => array(),
-					'[value]' => array(),
-					'[width]' => array(),
-					'accept' => array(),
-					'accesskey' => array(),
-					'autocomplete' => array(),
-					'autofocus' => array(),
-					'checked' => array(),
-					'disabled' => array(),
-					'height' => array(),
-					'inputmode' => array(),
-					'list' => array(),
-					'mask' => array(
-						'dispatch_key' => 1,
-						'mandatory' => true,
-					),
-					'mask-output' => array(),
-					'max' => array(),
-					'maxlength' => array(),
-					'min' => array(),
-					'minlength' => array(),
-					'multiple' => array(),
-					'name' => array(
-						'blacklisted_value_regex' => '(^|\\s)(__amp_\\S*|__count__|__defineGetter__|__defineSetter__|__lookupGetter__|__lookupSetter__|__noSuchMethod__|__parent__|__proto__|__AMP_\\S*|\\$p|\\$proxy|acceptCharset|addEventListener|appendChild|assignedSlot|attachShadow|baseURI|checkValidity|childElementCount|childNodes|classList|className|clientHeight|clientLeft|clientTop|clientWidth|compareDocumentPosition|computedName|computedRole|contentEditable|createShadowRoot|enqueAction|firstChild|firstElementChild|getAnimations|getAttribute|getAttributeNS|getAttributeNode|getAttributeNodeNS|getBoundingClientRect|getClientRects|getDestinationInsertionPoints|getElementsByClassName|getElementsByTagName|getElementsByTagNameNS|getRootNode|hasAttribute|hasAttributeNS|hasAttributes|hasChildNodes|hasPointerCapture|innerHTML|innerText|inputMode|insertAdjacentElement|insertAdjacentHTML|insertAdjacentText|isContentEditable|isDefaultNamespace|isEqualNode|isSameNode|lastChild|lastElementChild|lookupNamespaceURI|namespaceURI|nextElementSibling|nextSibling|nodeName|nodeType|nodeValue|offsetHeight|offsetLeft|offsetParent|offsetTop|offsetWidth|outerHTML|outerText|ownerDocument|parentElement|parentNode|previousElementSibling|previousSibling|querySelector|querySelectorAll|releasePointerCapture|removeAttribute|removeAttributeNS|removeAttributeNode|removeChild|removeEventListener|replaceChild|reportValidity|requestPointerLock|scrollHeight|scrollIntoView|scrollIntoViewIfNeeded|scrollLeft|scrollWidth|setAttribute|setAttributeNS|setAttributeNode|setAttributeNodeNS|setPointerCapture|shadowRoot|styleMap|tabIndex|tagName|textContent|toString|valueOf|(webkit|ms|moz|o)dropzone|(webkit|moz|ms|o)MatchesSelector|(webkit|moz|ms|o)RequestFullScreen|(webkit|moz|ms|o)RequestFullscreen)(\\s|$)',
-					),
-					'pattern' => array(),
-					'placeholder' => array(),
-					'readonly' => array(),
-					'required' => array(),
-					'selectiondirection' => array(),
-					'size' => array(),
-					'spellcheck' => array(),
-					'step' => array(),
-					'tabindex' => array(),
-					'type' => array(
-						'value' => array(
-							'text',
-							'tel',
-							'search',
-						),
-					),
-					'value' => array(),
-					'width' => array(),
-				),
-				'tag_spec' => array(
-					'requires_extension' => array(
-						'amp-inputmask',
-					),
-					'spec_name' => 'input [mask]',
-					'spec_url' => 'https://www.ampproject.org/docs/reference/components/amp-inputmask',
-				),
-			),
-		),
-		'ins' => array(
-			array(
-				'attr_spec_list' => array(
-					'cite' => array(
-						'blacklisted_value_regex' => '__amp_source_origin',
-						'value_url' => array(
-							'allow_empty' => true,
-							'protocol' => array(
-								'http',
-								'https',
-							),
-						),
-					),
-					'datetime' => array(),
-				),
-				'tag_spec' => array(),
-			),
-		),
-		'kbd' => array(
-			array(
-				'attr_spec_list' => array(),
-				'tag_spec' => array(),
-			),
-		),
-		'label' => array(
-			array(
-				'attr_spec_list' => array(
-					'for' => array(),
-				),
-				'tag_spec' => array(
-					'spec_url' => 'https://www.ampproject.org/docs/reference/components/amp-form',
-				),
-			),
-		),
-		'legend' => array(
-			array(
-				'attr_spec_list' => array(),
-				'tag_spec' => array(),
-			),
-		),
-		'li' => array(
-			array(
-				'attr_spec_list' => array(
-					'value' => array(
-						'value_regex' => '[0-9]*',
-					),
-				),
-				'tag_spec' => array(),
-			),
-		),
-		'line' => array(
-			array(
-				'attr_spec_list' => array(
-					'alignment-baseline' => array(),
-					'baseline-shift' => array(),
-					'clip' => array(),
-					'clip-path' => array(),
-					'clip-rule' => array(),
-					'color' => array(),
-					'color-interpolation' => array(),
-					'color-interpolation-filters' => array(),
-					'color-profile' => array(),
-					'color-rendering' => array(),
-					'cursor' => array(),
-					'direction' => array(),
-					'display' => array(),
-					'dominant-baseline' => array(),
-					'enable-background' => array(),
-					'externalresourcesrequired' => array(),
-					'fill' => array(),
-					'fill-opacity' => array(),
-					'fill-rule' => array(),
-					'filter' => array(),
-					'flood-color' => array(),
-					'flood-opacity' => array(),
-					'focusable' => array(),
-					'font-family' => array(),
-					'font-size' => array(),
-					'font-size-adjust' => array(),
-					'font-stretch' => array(),
-					'font-style' => array(),
-					'font-variant' => array(),
-					'font-weight' => array(),
-					'glyph-orientation-horizontal' => array(),
-					'glyph-orientation-vertical' => array(),
-					'image-rendering' => array(),
-					'kerning' => array(),
-					'letter-spacing' => array(),
-					'lighting-color' => array(),
-					'marker-end' => array(),
-					'marker-mid' => array(),
-					'marker-start' => array(),
-					'mask' => array(),
-					'opacity' => array(),
-					'overflow' => array(),
-					'pointer-events' => array(),
-					'requiredextensions' => array(),
-					'requiredfeatures' => array(),
-					'shape-rendering' => array(),
-					'sketch:type' => array(),
-					'stop-color' => array(),
-					'stop-opacity' => array(),
-					'stroke' => array(),
-					'stroke-dasharray' => array(),
-					'stroke-dashoffset' => array(),
-					'stroke-linecap' => array(),
-					'stroke-linejoin' => array(),
-					'stroke-miterlimit' => array(),
-					'stroke-opacity' => array(),
-					'stroke-width' => array(),
-					'style' => array(
-						'blacklisted_value_regex' => '!important',
-					),
-					'systemlanguage' => array(),
-					'text-anchor' => array(),
-					'text-decoration' => array(),
-					'text-rendering' => array(),
-					'transform' => array(),
-					'unicode-bidi' => array(),
-					'vector-effect' => array(),
-					'visibility' => array(),
-					'word-spacing' => array(),
-					'writing-mode' => array(),
-					'x1' => array(),
-					'x2' => array(),
-					'xml:lang' => array(),
-					'xml:space' => array(),
-					'xmlns' => array(),
-					'xmlns:xlink' => array(),
-					'y1' => array(),
-					'y2' => array(),
-				),
-				'tag_spec' => array(
-					'mandatory_ancestor' => 'svg',
-					'spec_url' => 'https://www.ampproject.org/docs/reference/spec#svg',
-				),
-			),
-		),
-		'lineargradient' => array(
-			array(
-				'attr_spec_list' => array(
-					'alignment-baseline' => array(),
-					'baseline-shift' => array(),
-					'clip' => array(),
-					'clip-path' => array(),
-					'clip-rule' => array(),
-					'color' => array(),
-					'color-interpolation' => array(),
-					'color-interpolation-filters' => array(),
-					'color-profile' => array(),
-					'color-rendering' => array(),
-					'cursor' => array(),
-					'direction' => array(),
-					'display' => array(),
-					'dominant-baseline' => array(),
-					'enable-background' => array(),
-					'externalresourcesrequired' => array(),
-					'fill' => array(),
-					'fill-opacity' => array(),
-					'fill-rule' => array(),
-					'filter' => array(),
-					'flood-color' => array(),
-					'flood-opacity' => array(),
-					'focusable' => array(),
-					'font-family' => array(),
-					'font-size' => array(),
-					'font-size-adjust' => array(),
-					'font-stretch' => array(),
-					'font-style' => array(),
-					'font-variant' => array(),
-					'font-weight' => array(),
-					'glyph-orientation-horizontal' => array(),
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-					'gradienttransform' => array(),
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-					),
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-					'x2' => array(),
-					'xlink:actuate' => array(),
-					'xlink:arcrole' => array(),
-					'xlink:href' => array(
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-							'href',
-						),
-						'value_url' => array(
-							'allow_empty' => false,
-							'protocol' => array(
-								'http',
-								'https',
-							),
-						),
-					),
-					'xlink:role' => array(),
-					'xlink:show' => array(),
-					'xlink:title' => array(),
-					'xlink:type' => array(),
-					'xml:lang' => array(),
-					'xml:space' => array(),
-					'xmlns' => array(),
-					'xmlns:xlink' => array(),
-					'y1' => array(),
-					'y2' => array(),
-				),
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-					'mandatory_ancestor' => 'svg',
-					'spec_url' => 'https://www.ampproject.org/docs/reference/spec#svg',
-				),
-			),
-		),
-		'link' => array(
-			array(
-				'attr_spec_list' => array(
-					'charset' => array(
-						'value_casei' => array(
-							'utf-8',
-						),
-					),
-					'color' => array(),
-					'crossorigin' => array(),
-					'href' => array(),
-					'hreflang' => array(),
-					'media' => array(),
-					'rel' => array(
-						'blacklisted_value_regex' => '(^|\\s)(canonical|components|import|manifest|preload|serviceworker|stylesheet|subresource|)(\\s|$)',
-						'mandatory' => true,
-					),
-					'sizes' => array(),
-					'target' => array(),
-					'type' => array(),
-				),
-				'tag_spec' => array(
-					'disallowed_ancestor' => array(
-						'template',
-					),
-					'spec_name' => 'link rel=',
-					'spec_url' => 'https://www.ampproject.org/docs/reference/spec#html-tags',
-				),
-			),
-			array(
-				'attr_spec_list' => array(
-					'charset' => array(
-						'value_casei' => array(
-							'utf-8',
-						),
-					),
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-					'crossorigin' => array(),
-					'href' => array(
-						'blacklisted_value_regex' => '__amp_source_origin',
-						'mandatory' => true,
-						'value_url' => array(
-							'protocol' => array(
-								'http',
-								'https',
-							),
-						),
-					),
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-					'media' => array(),
-					'rel' => array(
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-						'value_casei' => array(
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-					'target' => array(),
-					'type' => array(),
-				),
-				'tag_spec' => array(
-					'mandatory' => true,
-					'mandatory_parent' => 'head',
-					'spec_name' => 'link rel=canonical',
-					'spec_url' => 'https://www.ampproject.org/docs/reference/spec#required-markup',
-					'unique' => true,
-				),
-			),
-			array(
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-					'charset' => array(
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-							'utf-8',
-						),
-					),
-					'color' => array(),
-					'crossorigin' => array(),
-					'href' => array(
-						'blacklisted_value_regex' => '__amp_source_origin',
-						'mandatory' => true,
-						'value_url' => array(
-							'protocol' => array(
-								'https',
-							),
-						),
-					),
-					'hreflang' => array(),
-					'media' => array(),
-					'rel' => array(
-						'dispatch_key' => 2,
-						'mandatory' => true,
-						'value_casei' => array(
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-						),
-					),
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-					'target' => array(),
-					'type' => array(),
-				),
-				'tag_spec' => array(
-					'mandatory_parent' => 'head',
-					'spec_name' => 'link rel=manifest',
-					'spec_url' => 'https://www.ampproject.org/docs/reference/spec#html-tags',
-				),
-			),
-			array(
-				'attr_spec_list' => array(
-					'as' => array(),
-					'charset' => array(
-						'value_casei' => array(
-							'utf-8',
-						),
-					),
-					'color' => array(),
-					'crossorigin' => array(),
-					'href' => array(),
-					'hreflang' => array(),
-					'media' => array(),
-					'rel' => array(
-						'dispatch_key' => 2,
-						'mandatory' => true,
-						'value_casei' => array(
-							'preload',
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-					'target' => array(),
-					'type' => array(),
-				),
-				'tag_spec' => array(
-					'disallowed_ancestor' => array(
-						'template',
-					),
-					'spec_name' => 'link rel=preload',
-					'spec_url' => 'https://www.ampproject.org/docs/reference/spec#html-tags',
-				),
-			),
-			array(
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-					'async' => array(),
-					'crossorigin' => array(),
-					'href' => array(
-						'mandatory' => true,
-						'value_regex' => 'https://cdn\\.materialdesignicons\\.com/([0-9]+\\.?)+/css/materialdesignicons\\.min\\.css|https://cloud\\.typography\\.com/[0-9]*/[0-9]*/css/fonts\\.css|https://fast\\.fonts\\.net/.*|https://fonts\\.googleapis\\.com/css\\?.*|https://fonts\\.googleapis\\.com/icon\\?.*|https://fonts\\.googleapis\\.com/earlyaccess/.*\\.css|https://maxcdn\\.bootstrapcdn\\.com/font-awesome/([0-9]+\\.?)+/css/font-awesome\\.min\\.css(\\?.*)?|https://(use|pro)\\.fontawesome\\.com/releases/v([0-9]+\\.?)+/css/(all|brands|solid|regular|light|fontawesome)\\.css|https://(use|pro)\\.fontawesome\\.com/[0-9a-zA-Z]+\\.css|https://use\\.typekit\\.net/[\\w\\p{L}\\p{N}_]+\\.css',
-					),
-					'integrity' => array(),
-					'media' => array(),
-					'rel' => array(
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-						'mandatory' => true,
-						'value_casei' => array(
-							'stylesheet',
-						),
-					),
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-							'text/css',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'mandatory_parent' => 'head',
-					'spec_name' => 'link rel=stylesheet for fonts',
-					'spec_url' => 'https://www.ampproject.org/docs/reference/spec#custom-fonts',
-				),
-			),
-			array(
-				'attr_spec_list' => array(
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-						'value_casei' => array(
-							'utf-8',
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-					'crossorigin' => array(),
-					'href' => array(
-						'mandatory' => true,
-					),
-					'hreflang' => array(),
-					'itemprop' => array(
-						'dispatch_key' => 2,
-						'mandatory' => true,
-						'value_casei' => array(
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-					),
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-					'target' => array(),
-					'type' => array(),
-				),
-				'tag_spec' => array(
-					'spec_name' => 'link itemprop=sameAs',
-					'spec_url' => 'https://www.ampproject.org/docs/reference/spec#html-tags',
-				),
-			),
-			array(
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-					'charset' => array(
-						'value_casei' => array(
-							'utf-8',
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-					'color' => array(),
-					'crossorigin' => array(),
-					'href' => array(
-						'mandatory' => true,
-					),
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-					'itemprop' => array(
-						'mandatory' => true,
-					),
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-					'sizes' => array(),
-					'target' => array(),
-					'type' => array(),
-				),
-				'tag_spec' => array(
-					'spec_name' => 'link itemprop=',
-					'spec_url' => 'https://www.ampproject.org/docs/reference/spec#html-tags',
-				),
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-			array(
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-					'charset' => array(
-						'value_casei' => array(
-							'utf-8',
-						),
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-					'color' => array(),
-					'crossorigin' => array(),
-					'href' => array(
-						'mandatory' => true,
-					),
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-					'media' => array(),
-					'property' => array(
-						'mandatory' => true,
-					),
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-					'target' => array(),
-					'type' => array(),
-				),
-				'tag_spec' => array(
-					'spec_name' => 'link property=',
-					'spec_url' => 'https://www.ampproject.org/docs/reference/spec#html-tags',
-				),
-			),
-		),
-		'listing' => array(
-			array(
-				'attr_spec_list' => array(),
-				'tag_spec' => array(),
-			),
-		),
-		'main' => array(
-			array(
-				'attr_spec_list' => array(),
-				'tag_spec' => array(),
-			),
-		),
-		'mark' => array(
-			array(
-				'attr_spec_list' => array(),
-				'tag_spec' => array(),
-			),
-		),
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-					'baseline-shift' => array(),
-					'clip' => array(),
-					'clip-path' => array(),
-					'clip-rule' => array(),
-					'color' => array(),
-					'color-interpolation' => array(),
-					'color-interpolation-filters' => array(),
-					'color-profile' => array(),
-					'color-rendering' => array(),
-					'cursor' => array(),
-					'direction' => array(),
-					'display' => array(),
-					'dominant-baseline' => array(),
-					'enable-background' => array(),
-					'externalresourcesrequired' => array(),
-					'fill' => array(),
-					'fill-opacity' => array(),
-					'fill-rule' => array(),
-					'filter' => array(),
-					'flood-color' => array(),
-					'flood-opacity' => array(),
-					'focusable' => array(),
-					'font-family' => array(),
-					'font-size' => array(),
-					'font-size-adjust' => array(),
-					'font-stretch' => array(),
-					'font-style' => array(),
-					'font-variant' => array(),
-					'font-weight' => array(),
-					'glyph-orientation-horizontal' => array(),
-					'glyph-orientation-vertical' => array(),
-					'image-rendering' => array(),
-					'kerning' => array(),
-					'letter-spacing' => array(),
-					'lighting-color' => array(),
-					'marker-end' => array(),
-					'marker-mid' => array(),
-					'marker-start' => array(),
-					'markerheight' => array(),
-					'markerunits' => array(),
-					'markerwidth' => array(),
-					'mask' => array(),
-					'opacity' => array(),
-					'orient' => array(),
-					'overflow' => array(),
-					'pointer-events' => array(),
-					'preserveaspectratio' => array(),
-					'refx' => array(),
-					'refy' => array(),
-					'shape-rendering' => array(),
-					'stop-color' => array(),
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-					'stroke-opacity' => array(),
-					'stroke-width' => array(),
-					'style' => array(
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-					),
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-					'text-decoration' => array(),
-					'text-rendering' => array(),
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-					'viewbox' => array(),
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-					'word-spacing' => array(),
-					'writing-mode' => array(),
-					'xml:lang' => array(),
-					'xml:space' => array(),
-					'xmlns' => array(),
-					'xmlns:xlink' => array(),
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-					'mandatory_ancestor' => 'svg',
-					'spec_url' => 'https://www.ampproject.org/docs/reference/spec#svg',
-				),
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-					'clip' => array(),
-					'clip-path' => array(),
-					'clip-rule' => array(),
-					'color' => array(),
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-					'color-profile' => array(),
-					'color-rendering' => array(),
-					'cursor' => array(),
-					'direction' => array(),
-					'display' => array(),
-					'dominant-baseline' => array(),
-					'enable-background' => array(),
-					'externalresourcesrequired' => array(),
-					'fill' => array(),
-					'fill-opacity' => array(),
-					'fill-rule' => array(),
-					'filter' => array(),
-					'flood-color' => array(),
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-					'focusable' => array(),
-					'font-family' => array(),
-					'font-size' => array(),
-					'font-size-adjust' => array(),
-					'font-stretch' => array(),
-					'font-style' => array(),
-					'font-variant' => array(),
-					'font-weight' => array(),
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-					'glyph-orientation-vertical' => array(),
-					'height' => array(),
-					'image-rendering' => array(),
-					'kerning' => array(),
-					'letter-spacing' => array(),
-					'lighting-color' => array(),
-					'marker-end' => array(),
-					'marker-mid' => array(),
-					'marker-start' => array(),
-					'mask' => array(),
-					'maskcontentunits' => array(),
-					'maskunits' => array(),
-					'opacity' => array(),
-					'overflow' => array(),
-					'pointer-events' => array(),
-					'requiredextensions' => array(),
-					'requiredfeatures' => array(),
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-					'stop-color' => array(),
-					'stop-opacity' => array(),
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-					'stroke-dashoffset' => array(),
-					'stroke-linecap' => array(),
-					'stroke-linejoin' => array(),
-					'stroke-miterlimit' => array(),
-					'stroke-opacity' => array(),
-					'stroke-width' => array(),
-					'style' => array(
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-					),
-					'systemlanguage' => array(),
-					'text-anchor' => array(),
-					'text-decoration' => array(),
-					'text-rendering' => array(),
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-					'visibility' => array(),
-					'width' => array(),
-					'word-spacing' => array(),
-					'writing-mode' => array(),
-					'x' => array(),
-					'xml:lang' => array(),
-					'xml:space' => array(),
-					'xmlns' => array(),
-					'xmlns:xlink' => array(),
-					'y' => array(),
-				),
-				'tag_spec' => array(
-					'mandatory_ancestor' => 'svg',
-					'spec_url' => 'https://www.ampproject.org/docs/reference/spec#svg',
-				),
-			),
-		),
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-					'charset' => array(
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-						'mandatory' => true,
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-					'mandatory' => true,
-					'mandatory_parent' => 'head',
-					'spec_name' => 'meta charset=utf-8',
-					'spec_url' => 'https://www.ampproject.org/docs/reference/spec#required-markup',
-					'unique' => true,
-				),
-			),
-			array(
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-						'value_properties' => array(
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-							'initial-scale' => array(),
-							'maximum-scale' => array(),
-							'minimum-scale' => array(),
-							'shrink-to-fit' => array(),
-							'user-scalable' => array(),
-							'viewport-fit' => array(),
-							'width' => array(
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-							),
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-					'mandatory_parent' => 'head',
-					'spec_name' => 'meta name=viewport',
-					'spec_url' => 'https://www.ampproject.org/docs/reference/spec#required-markup',
-					'unique' => true,
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-			array(
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-						'value_properties' => array(
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-							),
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-							),
-						),
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-						'mandatory' => true,
-						'value_casei' => array(
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-					'mandatory_ancestor' => 'head',
-					'spec_name' => 'meta http-equiv=X-UA-Compatible',
-					'spec_url' => 'https://www.ampproject.org/docs/reference/spec#html-tags',
-				),
-			),
-			array(
-				'attr_spec_list' => array(
-					'content' => array(
-						'mandatory' => true,
-						'value_regex' => '.*app-id=.*',
-					),
-					'name' => array(
-						'dispatch_key' => 2,
-						'mandatory' => true,
-						'value_casei' => array(
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-						),
-					),
-				),
-				'tag_spec' => array(
-					'mandatory_parent' => 'head',
-					'spec_name' => 'meta name=apple-itunes-app',
-					'spec_url' => 'https://www.ampproject.org/docs/reference/spec#html-tags',
-				),
-			),
-			array(
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-					'content' => array(
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-					),
-					'name' => array(
-						'dispatch_key' => 2,
-						'mandatory' => true,
-						'value_casei' => array(
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-						),
-					),
-				),
-				'tag_spec' => array(
-					'mandatory_parent' => 'head',
-					'spec_name' => 'meta name=amp-experiments-opt-in',
-				),
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-					'content' => array(
-						'mandatory' => true,
-						'value_url' => array(
-							'protocol' => array(
-								'https',
-							),
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-					'name' => array(
-						'dispatch_key' => 2,
-						'mandatory' => true,
-						'value_casei' => array(
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-						),
-					),
-				),
-				'tag_spec' => array(
-					'mandatory_parent' => 'head',
-					'spec_name' => 'meta name=amp-3p-iframe-src',
-					'spec_url' => 'https://www.ampproject.org/docs/reference/components/amp-ad',
-				),
-			),
-			array(
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-					),
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-						'mandatory' => true,
-						'value_casei' => array(
-							'amp-experiment-token',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'mandatory_parent' => 'head',
-					'spec_name' => 'meta name=amp-experiment-token',
-				),
-			),
-			array(
-				'attr_spec_list' => array(
-					'content' => array(
-						'mandatory' => true,
-					),
-					'name' => array(
-						'dispatch_key' => 2,
-						'mandatory' => true,
-						'value_casei' => array(
-							'amp-link-variable-allowed-origin',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'mandatory_parent' => 'head',
-					'spec_name' => 'meta name=amp-link-variable-allowed-origin',
-				),
-			),
-			array(
-				'attr_spec_list' => array(
-					'content' => array(
-						'mandatory' => true,
-					),
-					'name' => array(
-						'dispatch_key' => 2,
-						'mandatory' => true,
-						'value_casei' => array(
-							'amp-google-client-id-api',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'mandatory_parent' => 'head',
-					'spec_name' => 'meta name=amp-google-clientid-id-api',
-				),
-			),
-			array(
-				'attr_spec_list' => array(
-					'name' => array(
-						'dispatch_key' => 2,
-						'mandatory' => true,
-						'value_casei' => array(
-							'amp-ad-doubleclick-sra',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'mandatory_parent' => 'head',
-					'spec_name' => 'meta name=amp-ad-doubleclick-sra',
-				),
-			),
-			array(
-				'attr_spec_list' => array(
-					'content' => array(),
-					'itemprop' => array(),
-					'name' => array(
-						'blacklisted_value_regex' => '(^|\\s)(amp-.*|amp4ads-.*|apple-itunes-app|content-disposition|revisit-after|viewport)(\\s|$)',
-					),
-					'property' => array(),
-					'scheme' => array(),
-				),
-				'tag_spec' => array(
-					'spec_name' => 'meta name= and content=',
-				),
-			),
-			array(
-				'attr_spec_list' => array(
-					'content' => array(
-						'mandatory' => true,
-						'value_casei' => array(
-							'text/html; charset=utf-8',
-						),
-					),
-					'http-equiv' => array(
-						'dispatch_key' => 2,
-						'mandatory' => true,
-						'value_casei' => array(
-							'content-type',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'mandatory_ancestor' => 'head',
-					'spec_name' => 'meta http-equiv=Content-Type',
-					'spec_url' => 'https://www.ampproject.org/docs/reference/spec#html-tags',
-				),
-			),
-			array(
-				'attr_spec_list' => array(
-					'content' => array(
-						'mandatory' => true,
-					),
-					'http-equiv' => array(
-						'dispatch_key' => 2,
-						'mandatory' => true,
-						'value_casei' => array(
-							'content-language',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'mandatory_ancestor' => 'head',
-					'spec_name' => 'meta http-equiv=content-language',
-					'spec_url' => 'https://www.ampproject.org/docs/reference/spec#html-tags',
-				),
-			),
-			array(
-				'attr_spec_list' => array(
-					'content' => array(
-						'mandatory' => true,
-					),
-					'http-equiv' => array(
-						'dispatch_key' => 2,
-						'mandatory' => true,
-						'value_casei' => array(
-							'pics-label',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'mandatory_ancestor' => 'head',
-					'spec_name' => 'meta http-equiv=pics-label',
-					'spec_url' => 'https://www.ampproject.org/docs/reference/spec#html-tags',
-				),
-			),
-			array(
-				'attr_spec_list' => array(
-					'content' => array(
-						'mandatory' => true,
-					),
-					'http-equiv' => array(
-						'dispatch_key' => 2,
-						'mandatory' => true,
-						'value_casei' => array(
-							'imagetoolbar',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'mandatory_ancestor' => 'head',
-					'spec_name' => 'meta http-equiv=imagetoolbar',
-					'spec_url' => 'https://www.ampproject.org/docs/reference/spec#html-tags',
-				),
-			),
-			array(
-				'attr_spec_list' => array(
-					'content' => array(
-						'mandatory' => true,
-						'value_casei' => array(
-							'text/css',
-						),
-					),
-					'http-equiv' => array(
-						'dispatch_key' => 2,
-						'mandatory' => true,
-						'value_casei' => array(
-							'content-style-type',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'mandatory_ancestor' => 'head',
-					'spec_name' => 'meta http-equiv=Content-Style-Type',
-					'spec_url' => 'https://www.ampproject.org/docs/reference/spec#html-tags',
-				),
-			),
-			array(
-				'attr_spec_list' => array(
-					'content' => array(
-						'mandatory' => true,
-						'value_casei' => array(
-							'text/javascript',
-						),
-					),
-					'http-equiv' => array(
-						'dispatch_key' => 2,
-						'mandatory' => true,
-						'value_casei' => array(
-							'content-script-type',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'mandatory_ancestor' => 'head',
-					'spec_name' => 'meta http-equiv=Content-Script-Type',
-					'spec_url' => 'https://www.ampproject.org/docs/reference/spec#html-tags',
-				),
-			),
-			array(
-				'attr_spec_list' => array(
-					'content' => array(
-						'mandatory' => true,
-					),
-					'http-equiv' => array(
-						'dispatch_key' => 2,
-						'mandatory' => true,
-						'value_casei' => array(
-							'origin-trial',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'mandatory_ancestor' => 'head',
-					'spec_name' => 'meta http-equiv=origin-trial',
-					'spec_url' => 'https://www.ampproject.org/docs/reference/spec#html-tags',
-				),
-			),
-			array(
-				'attr_spec_list' => array(
-					'content' => array(
-						'mandatory' => true,
-					),
-					'http-equiv' => array(
-						'dispatch_key' => 2,
-						'mandatory' => true,
-						'value_casei' => array(
-							'resource-type',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'mandatory_ancestor' => 'head',
-					'spec_name' => 'meta http-equiv=resource-type',
-					'spec_url' => 'https://www.ampproject.org/docs/reference/spec#html-tags',
-				),
-			),
-			array(
-				'attr_spec_list' => array(
-					'content' => array(
-						'mandatory' => true,
-						'value_casei' => array(
-							'off',
-							'on',
-						),
-					),
-					'http-equiv' => array(
-						'dispatch_key' => 2,
-						'mandatory' => true,
-						'value_casei' => array(
-							'x-dns-prefetch-control',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'mandatory_ancestor' => 'head',
-					'spec_name' => 'meta http-equiv=x-dns-prefetch-control',
-					'spec_url' => 'https://www.ampproject.org/docs/reference/spec#html-tags',
-				),
-			),
-			array(
-				'attr_spec_list' => array(
-					'content' => array(
-						'mandatory' => true,
-					),
-					'name' => array(
-						'dispatch_key' => 2,
-						'mandatory' => true,
-						'value_casei' => array(
-							'amp-ad-enable-refresh',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'mandatory_ancestor' => 'head',
-					'spec_name' => 'meta name=amp-ad-enable-refresh',
-				),
-			),
-			array(
-				'attr_spec_list' => array(
-					'content' => array(
-						'mandatory' => true,
-					),
-					'name' => array(
-						'dispatch_key' => 2,
-						'mandatory' => true,
-						'value_casei' => array(
-							'amp-to-amp-navigation',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'mandatory_parent' => 'head',
-					'spec_name' => 'meta name=amp-to-amp-navigation',
-					'unique' => true,
-				),
-			),
-		),
-		'metadata' => array(
-			array(
-				'attr_spec_list' => array(
-					'style' => array(
-						'blacklisted_value_regex' => '!important',
-					),
-					'xml:lang' => array(),
-					'xml:space' => array(),
-					'xmlns' => array(),
-					'xmlns:xlink' => array(),
-				),
-				'tag_spec' => array(
-					'mandatory_ancestor' => 'svg',
-					'spec_url' => 'https://www.ampproject.org/docs/reference/spec#svg',
-				),
-			),
-		),
-		'meter' => array(
-			array(
-				'attr_spec_list' => array(
-					'high' => array(),
-					'low' => array(),
-					'max' => array(),
-					'min' => array(),
-					'optimum' => array(),
-					'value' => array(),
-				),
-				'tag_spec' => array(),
-			),
-		),
-		'multicol' => array(
-			array(
-				'attr_spec_list' => array(),
-				'tag_spec' => array(),
-			),
-		),
-		'nav' => array(
-			array(
-				'attr_spec_list' => array(),
-				'tag_spec' => array(),
-			),
-			array(
-				'attr_spec_list' => array(
-					'toolbar' => array(
-						'dispatch_key' => 1,
-						'mandatory' => true,
-					),
-					'toolbar-target' => array(
-						'mandatory' => true,
-					),
-				),
-				'tag_spec' => array(
-					'mandatory_parent' => 'amp-sidebar',
-					'spec_name' => 'amp-sidebar > nav',
-				),
-			),
-		),
-		'nextid' => array(
-			array(
-				'attr_spec_list' => array(),
-				'tag_spec' => array(),
-			),
-		),
-		'nobr' => array(
-			array(
-				'attr_spec_list' => array(),
-				'tag_spec' => array(),
-			),
-		),
-		'noscript' => array(
-			array(
-				'attr_spec_list' => array(),
-				'tag_spec' => array(
-					'mandatory' => true,
-					'mandatory_parent' => 'head',
-					'spec_name' => 'noscript enclosure for boilerplate',
-					'spec_url' => 'https://github.com/ampproject/amphtml/blob/master/spec/amp-boilerplate.md',
-					'unique' => true,
-				),
-			),
-			array(
-				'attr_spec_list' => array(),
-				'tag_spec' => array(
-					'disallowed_ancestor' => array(
-						'noscript',
-					),
-					'mandatory_ancestor' => 'body',
-				),
-			),
-		),
-		'o:p' => array(
-			array(
-				'attr_spec_list' => array(),
-				'tag_spec' => array(),
-			),
-		),
-		'ol' => array(
-			array(
-				'attr_spec_list' => array(
-					'reversed' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'start' => array(
-						'value_regex' => '[0-9]*',
-					),
-					'type' => array(
-						'value_regex' => '[1AaIi]',
-					),
-				),
-				'tag_spec' => array(),
-			),
-		),
-		'optgroup' => array(
-			array(
-				'attr_spec_list' => array(
-					'[disabled]' => array(),
-					'[label]' => array(),
-					'disabled' => array(),
-					'label' => array(),
-				),
-				'tag_spec' => array(
-					'mandatory_parent' => 'select',
-					'spec_url' => 'https://www.ampproject.org/docs/reference/components/amp-form',
-				),
-			),
-		),
-		'option' => array(
-			array(
-				'attr_spec_list' => array(
-					'[disabled]' => array(),
-					'[label]' => array(),
-					'[selected]' => array(),
-					'[value]' => array(),
-					'disabled' => array(),
-					'label' => array(),
-					'selected' => array(),
-					'value' => array(),
-				),
-				'tag_spec' => array(
-					'spec_url' => 'https://www.ampproject.org/docs/reference/components/amp-form',
-				),
-			),
-		),
-		'output' => array(
-			array(
-				'attr_spec_list' => array(
-					'for' => array(),
-					'form' => array(),
-					'name' => array(
-						'blacklisted_value_regex' => '(^|\\s)(__amp_\\S*|__count__|__defineGetter__|__defineSetter__|__lookupGetter__|__lookupSetter__|__noSuchMethod__|__parent__|__proto__|__AMP_\\S*|\\$p|\\$proxy|acceptCharset|addEventListener|appendChild|assignedSlot|attachShadow|baseURI|checkValidity|childElementCount|childNodes|classList|className|clientHeight|clientLeft|clientTop|clientWidth|compareDocumentPosition|computedName|computedRole|contentEditable|createShadowRoot|enqueAction|firstChild|firstElementChild|getAnimations|getAttribute|getAttributeNS|getAttributeNode|getAttributeNodeNS|getBoundingClientRect|getClientRects|getDestinationInsertionPoints|getElementsByClassName|getElementsByTagName|getElementsByTagNameNS|getRootNode|hasAttribute|hasAttributeNS|hasAttributes|hasChildNodes|hasPointerCapture|innerHTML|innerText|inputMode|insertAdjacentElement|insertAdjacentHTML|insertAdjacentText|isContentEditable|isDefaultNamespace|isEqualNode|isSameNode|lastChild|lastElementChild|lookupNamespaceURI|namespaceURI|nextElementSibling|nextSibling|nodeName|nodeType|nodeValue|offsetHeight|offsetLeft|offsetParent|offsetTop|offsetWidth|outerHTML|outerText|ownerDocument|parentElement|parentNode|previousElementSibling|previousSibling|querySelector|querySelectorAll|releasePointerCapture|removeAttribute|removeAttributeNS|removeAttributeNode|removeChild|removeEventListener|replaceChild|reportValidity|requestPointerLock|scrollHeight|scrollIntoView|scrollIntoViewIfNeeded|scrollLeft|scrollWidth|setAttribute|setAttributeNS|setAttributeNode|setAttributeNodeNS|setPointerCapture|shadowRoot|styleMap|tabIndex|tagName|textContent|toString|valueOf|(webkit|ms|moz|o)dropzone|(webkit|moz|ms|o)MatchesSelector|(webkit|moz|ms|o)RequestFullScreen|(webkit|moz|ms|o)RequestFullscreen)(\\s|$)',
-					),
-				),
-				'tag_spec' => array(),
-			),
-		),
-		'p' => array(
-			array(
-				'attr_spec_list' => array(
-					'align' => array(),
-				),
-				'tag_spec' => array(),
-			),
-		),
-		'path' => array(
-			array(
-				'attr_spec_list' => array(
-					'alignment-baseline' => array(),
-					'baseline-shift' => array(),
-					'clip' => array(),
-					'clip-path' => array(),
-					'clip-rule' => array(),
-					'color' => array(),
-					'color-interpolation' => array(),
-					'color-interpolation-filters' => array(),
-					'color-profile' => array(),
-					'color-rendering' => array(),
-					'cursor' => array(),
-					'd' => array(),
-					'direction' => array(),
-					'display' => array(),
-					'dominant-baseline' => array(),
-					'enable-background' => array(),
-					'externalresourcesrequired' => array(),
-					'fill' => array(),
-					'fill-opacity' => array(),
-					'fill-rule' => array(),
-					'filter' => array(),
-					'flood-color' => array(),
-					'flood-opacity' => array(),
-					'focusable' => array(),
-					'font-family' => array(),
-					'font-size' => array(),
-					'font-size-adjust' => array(),
-					'font-stretch' => array(),
-					'font-style' => array(),
-					'font-variant' => array(),
-					'font-weight' => array(),
-					'glyph-orientation-horizontal' => array(),
-					'glyph-orientation-vertical' => array(),
-					'image-rendering' => array(),
-					'kerning' => array(),
-					'letter-spacing' => array(),
-					'lighting-color' => array(),
-					'marker-end' => array(),
-					'marker-mid' => array(),
-					'marker-start' => array(),
-					'mask' => array(),
-					'opacity' => array(),
-					'overflow' => array(),
-					'pathlength' => array(),
-					'pointer-events' => array(),
-					'requiredextensions' => array(),
-					'requiredfeatures' => array(),
-					'shape-rendering' => array(),
-					'sketch:type' => array(),
-					'stop-color' => array(),
-					'stop-opacity' => array(),
-					'stroke' => array(),
-					'stroke-dasharray' => array(),
-					'stroke-dashoffset' => array(),
-					'stroke-linecap' => array(),
-					'stroke-linejoin' => array(),
-					'stroke-miterlimit' => array(),
-					'stroke-opacity' => array(),
-					'stroke-width' => array(),
-					'style' => array(
-						'blacklisted_value_regex' => '!important',
-					),
-					'systemlanguage' => array(),
-					'text-anchor' => array(),
-					'text-decoration' => array(),
-					'text-rendering' => array(),
-					'transform' => array(),
-					'unicode-bidi' => array(),
-					'vector-effect' => array(),
-					'visibility' => array(),
-					'word-spacing' => array(),
-					'writing-mode' => array(),
-					'xml:lang' => array(),
-					'xml:space' => array(),
-					'xmlns' => array(),
-					'xmlns:xlink' => array(),
-				),
-				'tag_spec' => array(
-					'mandatory_ancestor' => 'svg',
-					'spec_url' => 'https://www.ampproject.org/docs/reference/spec#svg',
-				),
-			),
-		),
-		'pattern' => array(
-			array(
-				'attr_spec_list' => array(
-					'alignment-baseline' => array(),
-					'baseline-shift' => array(),
-					'clip' => array(),
-					'clip-path' => array(),
-					'clip-rule' => array(),
-					'color' => array(),
-					'color-interpolation' => array(),
-					'color-interpolation-filters' => array(),
-					'color-profile' => array(),
-					'color-rendering' => array(),
-					'cursor' => array(),
-					'direction' => array(),
-					'display' => array(),
-					'dominant-baseline' => array(),
-					'enable-background' => array(),
-					'externalresourcesrequired' => array(),
-					'fill' => array(),
-					'fill-opacity' => array(),
-					'fill-rule' => array(),
-					'filter' => array(),
-					'flood-color' => array(),
-					'flood-opacity' => array(),
-					'focusable' => array(),
-					'font-family' => array(),
-					'font-size' => array(),
-					'font-size-adjust' => array(),
-					'font-stretch' => array(),
-					'font-style' => array(),
-					'font-variant' => array(),
-					'font-weight' => array(),
-					'glyph-orientation-horizontal' => array(),
-					'glyph-orientation-vertical' => array(),
-					'height' => array(),
-					'image-rendering' => array(),
-					'kerning' => array(),
-					'letter-spacing' => array(),
-					'lighting-color' => array(),
-					'marker-end' => array(),
-					'marker-mid' => array(),
-					'marker-start' => array(),
-					'mask' => array(),
-					'opacity' => array(),
-					'overflow' => array(),
-					'patterncontentunits' => array(),
-					'patterntransform' => array(),
-					'patternunits' => array(),
-					'pointer-events' => array(),
-					'preserveaspectratio' => array(),
-					'requiredextensions' => array(),
-					'requiredfeatures' => array(),
-					'shape-rendering' => array(),
-					'stop-color' => array(),
-					'stop-opacity' => array(),
-					'stroke' => array(),
-					'stroke-dasharray' => array(),
-					'stroke-dashoffset' => array(),
-					'stroke-linecap' => array(),
-					'stroke-linejoin' => array(),
-					'stroke-miterlimit' => array(),
-					'stroke-opacity' => array(),
-					'stroke-width' => array(),
-					'style' => array(
-						'blacklisted_value_regex' => '!important',
-					),
-					'systemlanguage' => array(),
-					'text-anchor' => array(),
-					'text-decoration' => array(),
-					'text-rendering' => array(),
-					'unicode-bidi' => array(),
-					'vector-effect' => array(),
-					'viewbox' => array(),
-					'visibility' => array(),
-					'width' => array(),
-					'word-spacing' => array(),
-					'writing-mode' => array(),
-					'x' => array(),
-					'xlink:actuate' => array(),
-					'xlink:arcrole' => array(),
-					'xlink:href' => array(
-						'alternative_names' => array(
-							'href',
-						),
-						'value_url' => array(
-							'allow_empty' => false,
-							'protocol' => array(
-								'http',
-								'https',
-							),
-						),
-					),
-					'xlink:role' => array(),
-					'xlink:show' => array(),
-					'xlink:title' => array(),
-					'xlink:type' => array(),
-					'xml:lang' => array(),
-					'xml:space' => array(),
-					'xmlns' => array(),
-					'xmlns:xlink' => array(),
-					'y' => array(),
-				),
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-					'spec_url' => 'https://www.ampproject.org/docs/reference/spec#svg',
-				),
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-					'spec_url' => 'https://www.ampproject.org/docs/reference/components/amp-img',
-				),
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-					'spec_url' => 'https://www.ampproject.org/docs/reference/spec#svg',
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-					'spec_url' => 'https://www.ampproject.org/docs/reference/spec#svg',
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-				'attr_spec_list' => array(),
-				'tag_spec' => array(),
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-					'value' => array(),
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-							'protocol' => array(
-								'http',
-								'https',
-							),
-						),
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-				'tag_spec' => array(),
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-							'protocol' => array(
-								'http',
-								'https',
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-					),
-				),
-			),
-			array(
-				'attr_spec_list' => array(
-					'async' => array(
-						'mandatory' => true,
-						'value' => array(
-							'',
-						),
-					),
-					'nonce' => array(),
-					'type' => array(
-						'value_casei' => array(
-							'text/javascript',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'extension_spec' => array(
-						'deprecated_allow_duplicates' => true,
-						'name' => 'amp-user-notification',
-						'requires_usage' => 2,
-						'version' => array(
-							'0.1',
-							'latest',
-						),
-					),
-				),
-			),
-			array(
-				'attr_spec_list' => array(
-					'async' => array(
-						'mandatory' => true,
-						'value' => array(
-							'',
-						),
-					),
-					'nonce' => array(),
-					'type' => array(
-						'value_casei' => array(
-							'text/javascript',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'extension_spec' => array(
-						'name' => 'amp-video',
-						'requires_usage' => 3,
-						'version' => array(
-							'0.1',
-							'latest',
-						),
-					),
-					'spec_name' => 'amp-video extension .js script',
-				),
-			),
-			array(
-				'attr_spec_list' => array(
-					'async' => array(
-						'mandatory' => true,
-						'value' => array(
-							'',
-						),
-					),
-					'nonce' => array(),
-					'type' => array(
-						'value_casei' => array(
-							'text/javascript',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'extension_spec' => array(
-						'deprecated_allow_duplicates' => true,
-						'name' => 'amp-vimeo',
-						'requires_usage' => 2,
-						'version' => array(
-							'0.1',
-							'latest',
-						),
-					),
-				),
-			),
-			array(
-				'attr_spec_list' => array(
-					'async' => array(
-						'mandatory' => true,
-						'value' => array(
-							'',
-						),
-					),
-					'nonce' => array(),
-					'type' => array(
-						'value_casei' => array(
-							'text/javascript',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'extension_spec' => array(
-						'deprecated_allow_duplicates' => true,
-						'name' => 'amp-vine',
-						'requires_usage' => 2,
-						'version' => array(
-							'0.1',
-							'latest',
-						),
-					),
-				),
-			),
-			array(
-				'attr_spec_list' => array(
-					'async' => array(
-						'mandatory' => true,
-						'value' => array(
-							'',
-						),
-					),
-					'nonce' => array(),
-					'type' => array(
-						'value_casei' => array(
-							'text/javascript',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'extension_spec' => array(
-						'name' => 'amp-viqeo-player',
-						'version' => array(
-							'0.1',
-							'latest',
-						),
-					),
-				),
-			),
-			array(
-				'attr_spec_list' => array(
-					'async' => array(
-						'mandatory' => true,
-						'value' => array(
-							'',
-						),
-					),
-					'nonce' => array(),
-					'type' => array(
-						'value_casei' => array(
-							'text/javascript',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'extension_spec' => array(
-						'name' => 'amp-vk',
-						'version' => array(
-							'0.1',
-							'latest',
-						),
-					),
-				),
-			),
-			array(
-				'attr_spec_list' => array(
-					'async' => array(
-						'mandatory' => true,
-						'value' => array(
-							'',
-						),
-					),
-					'nonce' => array(),
-					'type' => array(
-						'value_casei' => array(
-							'text/javascript',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'extension_spec' => array(
-						'name' => 'amp-web-push',
-						'version' => array(
-							'0.1',
-							'latest',
-						),
-					),
-				),
-			),
-			array(
-				'attr_spec_list' => array(
-					'async' => array(
-						'mandatory' => true,
-						'value' => array(
-							'',
-						),
-					),
-					'nonce' => array(),
-					'type' => array(
-						'value_casei' => array(
-							'text/javascript',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'extension_spec' => array(
-						'name' => 'amp-wistia-player',
-						'version' => array(
-							'0.1',
-							'latest',
-						),
-					),
-				),
-			),
-			array(
-				'attr_spec_list' => array(
-					'async' => array(
-						'mandatory' => true,
-						'value' => array(
-							'',
-						),
-					),
-					'nonce' => array(),
-					'type' => array(
-						'value_casei' => array(
-							'text/javascript',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'extension_spec' => array(
-						'name' => 'amp-yotpo',
-						'version' => array(
-							'0.1',
-							'latest',
-						),
-					),
-					'spec_url' => 'https://www.ampproject.org/docs/reference/components/amp-yotpo',
-				),
-			),
-			array(
-				'attr_spec_list' => array(
-					'async' => array(
-						'mandatory' => true,
-						'value' => array(
-							'',
-						),
-					),
-					'nonce' => array(),
-					'type' => array(
-						'value_casei' => array(
-							'text/javascript',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'extension_spec' => array(
-						'deprecated_allow_duplicates' => true,
-						'name' => 'amp-youtube',
-						'requires_usage' => 2,
-						'version' => array(
-							'0.1',
-							'latest',
-						),
-					),
-				),
-			),
-		),
-		'section' => array(
-			array(
-				'attr_spec_list' => array(),
-				'tag_spec' => array(
-					'disallowed_ancestor' => array(
-						'amp-accordion',
-					),
-				),
-			),
-			array(
-				'attr_spec_list' => array(
-					'expanded' => array(
-						'value' => array(
-							'',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'mandatory_parent' => 'amp-accordion',
-					'spec_name' => 'amp-accordion > section',
-				),
-			),
-		),
-		'select' => array(
-			array(
-				'attr_spec_list' => array(
-					'[autofocus]' => array(),
-					'[disabled]' => array(),
-					'[multiple]' => array(),
-					'[required]' => array(),
-					'[size]' => array(),
-					'autofocus' => array(),
-					'disabled' => array(),
-					'multiple' => array(),
-					'name' => array(
-						'blacklisted_value_regex' => '(^|\\s)(__amp_\\S*|__count__|__defineGetter__|__defineSetter__|__lookupGetter__|__lookupSetter__|__noSuchMethod__|__parent__|__proto__|__AMP_\\S*|\\$p|\\$proxy|acceptCharset|addEventListener|appendChild|assignedSlot|attachShadow|baseURI|checkValidity|childElementCount|childNodes|classList|className|clientHeight|clientLeft|clientTop|clientWidth|compareDocumentPosition|computedName|computedRole|contentEditable|createShadowRoot|enqueAction|firstChild|firstElementChild|getAnimations|getAttribute|getAttributeNS|getAttributeNode|getAttributeNodeNS|getBoundingClientRect|getClientRects|getDestinationInsertionPoints|getElementsByClassName|getElementsByTagName|getElementsByTagNameNS|getRootNode|hasAttribute|hasAttributeNS|hasAttributes|hasChildNodes|hasPointerCapture|innerHTML|innerText|inputMode|insertAdjacentElement|insertAdjacentHTML|insertAdjacentText|isContentEditable|isDefaultNamespace|isEqualNode|isSameNode|lastChild|lastElementChild|lookupNamespaceURI|namespaceURI|nextElementSibling|nextSibling|nodeName|nodeType|nodeValue|offsetHeight|offsetLeft|offsetParent|offsetTop|offsetWidth|outerHTML|outerText|ownerDocument|parentElement|parentNode|previousElementSibling|previousSibling|querySelector|querySelectorAll|releasePointerCapture|removeAttribute|removeAttributeNS|removeAttributeNode|removeChild|removeEventListener|replaceChild|reportValidity|requestPointerLock|scrollHeight|scrollIntoView|scrollIntoViewIfNeeded|scrollLeft|scrollWidth|setAttribute|setAttributeNS|setAttributeNode|setAttributeNodeNS|setPointerCapture|shadowRoot|styleMap|tabIndex|tagName|textContent|toString|valueOf|(webkit|ms|moz|o)dropzone|(webkit|moz|ms|o)MatchesSelector|(webkit|moz|ms|o)RequestFullScreen|(webkit|moz|ms|o)RequestFullscreen)(\\s|$)',
-					),
-					'no-verify' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'required' => array(),
-					'size' => array(),
-				),
-				'tag_spec' => array(
-					'spec_url' => 'https://www.ampproject.org/docs/reference/components/amp-form',
-				),
-			),
-		),
-		'slot' => array(
-			array(
-				'attr_spec_list' => array(
-					'name' => array(),
-				),
-				'tag_spec' => array(),
-			),
-		),
-		'small' => array(
-			array(
-				'attr_spec_list' => array(),
-				'tag_spec' => array(),
-			),
-		),
-		'solidcolor' => array(
-			array(
-				'attr_spec_list' => array(
-					'alignment-baseline' => array(),
-					'baseline-shift' => array(),
-					'clip' => array(),
-					'clip-path' => array(),
-					'clip-rule' => array(),
-					'color' => array(),
-					'color-interpolation' => array(),
-					'color-interpolation-filters' => array(),
-					'color-profile' => array(),
-					'color-rendering' => array(),
-					'cursor' => array(),
-					'direction' => array(),
-					'display' => array(),
-					'dominant-baseline' => array(),
-					'enable-background' => array(),
-					'fill' => array(),
-					'fill-opacity' => array(),
-					'fill-rule' => array(),
-					'filter' => array(),
-					'flood-color' => array(),
-					'flood-opacity' => array(),
-					'focusable' => array(),
-					'font-family' => array(),
-					'font-size' => array(),
-					'font-size-adjust' => array(),
-					'font-stretch' => array(),
-					'font-style' => array(),
-					'font-variant' => array(),
-					'font-weight' => array(),
-					'glyph-orientation-horizontal' => array(),
-					'glyph-orientation-vertical' => array(),
-					'image-rendering' => array(),
-					'kerning' => array(),
-					'letter-spacing' => array(),
-					'lighting-color' => array(),
-					'marker-end' => array(),
-					'marker-mid' => array(),
-					'marker-start' => array(),
-					'mask' => array(),
-					'opacity' => array(),
-					'overflow' => array(),
-					'pointer-events' => array(),
-					'shape-rendering' => array(),
-					'solid-color' => array(),
-					'solid-opacity' => array(),
-					'stop-color' => array(),
-					'stop-opacity' => array(),
-					'stroke' => array(),
-					'stroke-dasharray' => array(),
-					'stroke-dashoffset' => array(),
-					'stroke-linecap' => array(),
-					'stroke-linejoin' => array(),
-					'stroke-miterlimit' => array(),
-					'stroke-opacity' => array(),
-					'stroke-width' => array(),
-					'style' => array(
-						'blacklisted_value_regex' => '!important',
-					),
-					'text-anchor' => array(),
-					'text-decoration' => array(),
-					'text-rendering' => array(),
-					'unicode-bidi' => array(),
-					'vector-effect' => array(),
-					'visibility' => array(),
-					'word-spacing' => array(),
-					'writing-mode' => array(),
-					'xml:lang' => array(),
-					'xml:space' => array(),
-					'xmlns' => array(),
-					'xmlns:xlink' => array(),
-				),
-				'tag_spec' => array(
-					'mandatory_ancestor' => 'svg',
-					'spec_url' => 'https://www.ampproject.org/docs/reference/spec#svg',
-				),
-			),
-		),
-		'source' => array(
-			array(
-				'attr_spec_list' => array(
-					'media' => array(),
-					'sizes' => array(),
-					'srcset' => array(
-						'blacklisted_value_regex' => '__amp_source_origin',
-						'value_url' => array(
-							'allow_relative' => true,
-							'protocol' => array(
-								'data',
-								'http',
-								'https',
-							),
-						),
-					),
-					'type' => array(),
-				),
-				'tag_spec' => array(
-					'mandatory_parent' => 'picture',
-					'spec_name' => 'picture > source',
-					'spec_url' => 'https://www.ampproject.org/docs/reference/components/amp-img',
-				),
-			),
-			array(
-				'attr_spec_list' => array(
-					'[src]' => array(),
-					'[type]' => array(),
-					'media' => array(),
-					'src' => array(
-						'blacklisted_value_regex' => '__amp_source_origin',
-						'value_url' => array(
-							'allow_relative' => true,
-							'protocol' => array(
-								'https',
-							),
-						),
-					),
-					'type' => array(),
-				),
-				'tag_spec' => array(
-					'mandatory_parent' => 'amp-video',
-					'spec_name' => 'amp-video > source',
-					'spec_url' => 'https://www.ampproject.org/docs/reference/components/amp-video',
-				),
-			),
-			array(
-				'attr_spec_list' => array(
-					'[src]' => array(),
-					'[type]' => array(),
-					'media' => array(),
-					'src' => array(
-						'blacklisted_value_regex' => '__amp_source_origin',
-						'value_url' => array(
-							'allow_relative' => true,
-							'protocol' => array(
-								'https',
-							),
-						),
-					),
-					'type' => array(),
-				),
-				'tag_spec' => array(
-					'mandatory_parent' => 'amp-audio',
-					'spec_name' => 'amp-audio > source',
-					'spec_url' => 'https://www.ampproject.org/docs/reference/components/amp-audio',
-				),
-			),
-			array(
-				'attr_spec_list' => array(
-					'media' => array(),
-					'src' => array(
-						'blacklisted_value_regex' => '__amp_source_origin',
-						'mandatory' => true,
-						'value_url' => array(
-							'allow_relative' => true,
-							'protocol' => array(
-								'https',
-							),
-						),
-					),
-					'type' => array(
-						'mandatory' => true,
-					),
-				),
-				'tag_spec' => array(
-					'mandatory_parent' => 'audio',
-					'spec_name' => 'audio > source',
-					'spec_url' => 'https://www.ampproject.org/docs/reference/components/amp-audio',
-				),
-			),
-			array(
-				'attr_spec_list' => array(
-					'media' => array(),
-					'src' => array(
-						'blacklisted_value_regex' => '__amp_source_origin',
-						'mandatory' => true,
-						'value_url' => array(
-							'allow_relative' => true,
-							'protocol' => array(
-								'https',
-							),
-						),
-					),
-					'type' => array(
-						'mandatory' => true,
-					),
-				),
-				'tag_spec' => array(
-					'mandatory_parent' => 'video',
-					'spec_name' => 'video > source',
-					'spec_url' => 'https://www.ampproject.org/docs/reference/components/amp-video',
-				),
-			),
-			array(
-				'attr_spec_list' => array(
-					'[src]' => array(),
-					'[type]' => array(),
-					'media' => array(),
-					'src' => array(
-						'blacklisted_value_regex' => '__amp_source_origin',
-						'value_url' => array(
-							'allow_relative' => true,
-							'protocol' => array(
-								'https',
-							),
-						),
-					),
-					'type' => array(),
-				),
-				'tag_spec' => array(
-					'mandatory_parent' => 'amp-ima-video',
-					'requires_extension' => array(
-						'amp-ima-video',
-					),
-					'spec_name' => 'amp-ima-video > source',
-				),
-			),
-		),
-		'spacer' => array(
-			array(
-				'attr_spec_list' => array(),
-				'tag_spec' => array(),
-			),
-		),
-		'span' => array(
-			array(
-				'attr_spec_list' => array(),
-				'tag_spec' => array(),
-			),
-		),
-		'stop' => array(
-			array(
-				'attr_spec_list' => array(
-					'offset' => array(),
-					'stop-color' => array(),
-					'stop-opacity' => array(),
-					'style' => array(
-						'blacklisted_value_regex' => '!important',
-					),
-				),
-				'tag_spec' => array(
-					'mandatory_ancestor' => 'lineargradient',
-					'spec_name' => 'lineargradient > stop',
-					'spec_url' => 'https://www.ampproject.org/docs/reference/spec#svg',
-				),
-			),
-			array(
-				'attr_spec_list' => array(
-					'offset' => array(),
-					'stop-color' => array(),
-					'stop-opacity' => array(),
-					'style' => array(
-						'blacklisted_value_regex' => '!important',
-					),
-				),
-				'tag_spec' => array(
-					'mandatory_ancestor' => 'radialgradient',
-					'spec_name' => 'radialgradient > stop',
-					'spec_url' => 'https://www.ampproject.org/docs/reference/spec#svg',
-				),
-			),
-		),
-		'strike' => array(
-			array(
-				'attr_spec_list' => array(),
-				'tag_spec' => array(),
-			),
-		),
-		'strong' => array(
-			array(
-				'attr_spec_list' => array(),
-				'tag_spec' => array(),
-			),
-		),
-		'style' => array(
-			array(
-				'attr_spec_list' => array(
-					'amp-custom' => array(
-						'mandatory' => true,
-						'value' => array(
-							'',
-						),
-					),
-					'nonce' => array(),
-					'type' => array(
-						'value_casei' => array(
-							'text/css',
-						),
-					),
-				),
-				'cdata' => array(
-					'blacklisted_cdata_regex' => array(
-						'error_message' => 'CSS !important',
-						'regex' => '!important',
-					),
-					'css_spec' => array(
-						'allowed_at_rules' => array(
-							'font-face',
-							'keyframes',
-							'media',
-							'page',
-							'supports',
-						),
-						'declaration' => array(),
-						'font_url_spec' => array(
-							'allow_empty' => true,
-							'protocol' => array(
-								'https',
-								'http',
-								'data',
-							),
-						),
-						'image_url_spec' => array(
-							'allow_empty' => true,
-							'protocol' => array(
-								'https',
-								'http',
-								'data',
-								'absolute',
-							),
-						),
-						'validate_keyframes' => false,
-					),
-					'max_bytes' => 50000,
-					'max_bytes_spec_url' => 'https://www.ampproject.org/docs/reference/spec#maximum-size',
-				),
-				'tag_spec' => array(
-					'mandatory_parent' => 'head',
-					'spec_name' => 'style amp-custom',
-					'spec_url' => 'https://www.ampproject.org/docs/reference/spec#stylesheets',
-					'unique' => true,
-				),
-			),
-			array(
-				'attr_spec_list' => array(
-					'nonce' => array(),
-				),
-				'cdata' => array(
-					'cdata_regex' => 'body ?{opacity: ?0}',
-				),
-				'tag_spec' => array(
-					'mandatory_alternatives' => 'head > style[amp-boilerplate]',
-					'mandatory_parent' => 'head',
-					'spec_name' => 'head > style[amp-boilerplate] - old variant',
-					'spec_url' => 'https://github.com/ampproject/amphtml/blob/master/spec/amp-boilerplate.md',
-					'unique' => true,
-				),
-			),
-			array(
-				'attr_spec_list' => array(
-					'amp-boilerplate' => array(
-						'dispatch_key' => 3,
-						'mandatory' => true,
-						'value' => array(
-							'',
-						),
-					),
-					'nonce' => array(),
-				),
-				'cdata' => array(
-					'cdata_regex' => '\\s*body\\s*{\\s*-webkit-animation:\\s*-amp-start\\s+8s\\s+steps\\(1,\\s*end\\)\\s+0s\\s+1\\s+normal\\s+both;\\s*-moz-animation:\\s*-amp-start\\s+8s\\s+steps\\s*\\(1\\s*,\\s*end\\s*\\)\\s+0s\\s+1\\s+normal\\s+both;\\s*-ms-animation:\\s*-amp-start\\s+8s\\s+steps\\s*\\(1\\s*,\\s*end\\s*\\)\\s+0s\\s+1\\s+normal\\s+both;\\s*animation:\\s*-amp-start\\s+8s\\s+steps\\(1,\\s*end\\)\\s+0s\\s+1\\s+normal\\s+both;?\\s*}\\s*@-webkit-keyframes\\s+-amp-start\\s*{\\s*from\\s*{\\s*visibility:\\s*hidden;?\\s*}\\s*to\\s*{\\s*visibility:\\s*visible;?\\s*}\\s*}\\s*@-moz-keyframes\\s+-amp-start\\s*{\\s*from\\s*{\\s*visibility:\\s*hidden;?\\s*}\\s*to\\s*{\\s*visibility:\\s*visible;?\\s*}\\s*}\\s*@-ms-keyframes\\s+-amp-start\\s*{\\s*from\\s*{\\s*visibility:\\s*hidden;?\\s*}\\s*to\\s*{\\s*visibility:\\s*visible;?\\s*}\\s*}\\s*@-o-keyframes\\s+-amp-start\\s*{\\s*from\\s*{\\s*visibility:\\s*hidden;?\\s*}\\s*to\\s*{\\s*visibility:\\s*visible;?\\s*}\\s*}\\s*@keyframes\\s+-amp-start\\s*{\\s*from\\s*{\\s*visibility:\\s*hidden;?\\s*}\\s*to\\s*{\\s*visibility:\\s*visible;?\\s*}\\s*}\\s*',
-				),
-				'tag_spec' => array(
-					'mandatory_alternatives' => 'head > style[amp-boilerplate]',
-					'mandatory_parent' => 'head',
-					'spec_name' => 'head > style[amp-boilerplate]',
-					'spec_url' => 'https://github.com/ampproject/amphtml/blob/master/spec/amp-boilerplate.md',
-					'unique' => true,
-				),
-			),
-			array(
-				'attr_spec_list' => array(
-					'amp-boilerplate' => array(
-						'dispatch_key' => 3,
-						'mandatory' => true,
-						'value' => array(
-							'',
-						),
-					),
-					'nonce' => array(),
-				),
-				'cdata' => array(
-					'cdata_regex' => '\\s*body\\s*{\\s*-webkit-animation:\\s*none;\\s*-moz-animation:\\s*none;\\s*-ms-animation:\\s*none;\\s*animation:\\s*none;?\\s*}\\s*',
-				),
-				'tag_spec' => array(
-					'mandatory_alternatives' => 'noscript > style[amp-boilerplate]',
-					'mandatory_ancestor' => 'head',
-					'mandatory_parent' => 'noscript',
-					'spec_name' => 'noscript > style[amp-boilerplate]',
-					'spec_url' => 'https://github.com/ampproject/amphtml/blob/master/spec/amp-boilerplate.md',
-					'unique' => true,
-				),
-			),
-			array(
-				'attr_spec_list' => array(
-					'amp-keyframes' => array(
-						'dispatch_key' => 1,
-						'mandatory' => true,
-						'value' => array(
-							'',
-						),
-					),
-				),
-				'cdata' => array(
-					'css_spec' => array(
-						'allowed_at_rules' => array(
-							'keyframes',
-							'media',
-							'supports',
-						),
-						'declaration' => array(
-							'animation-timing-function',
-							'offset-distance',
-							'opacity',
-							'transform',
-							'visibility',
-						),
-						'font_url_spec' => array(),
-						'image_url_spec' => array(),
-						'validate_keyframes' => true,
-					),
-					'max_bytes' => 500000,
-					'max_bytes_spec_url' => 'https://www.ampproject.org/docs/reference/spec#keyframes-stylesheet',
-				),
-				'tag_spec' => array(
-					'mandatory_parent' => 'body',
-					'spec_name' => 'style[amp-keyframes]',
-					'unique' => true,
-				),
-			),
-		),
-		'sub' => array(
-			array(
-				'attr_spec_list' => array(),
-				'tag_spec' => array(),
-			),
-		),
-		'sup' => array(
-			array(
-				'attr_spec_list' => array(),
-				'tag_spec' => array(),
-			),
-		),
-		'svg' => array(
-			array(
-				'attr_spec_list' => array(
-					'alignment-baseline' => array(),
-					'baseline-shift' => array(),
-					'clip' => array(),
-					'clip-path' => array(),
-					'clip-rule' => array(),
-					'color' => array(),
-					'color-interpolation' => array(),
-					'color-interpolation-filters' => array(),
-					'color-profile' => array(),
-					'color-rendering' => array(),
-					'contentscripttype' => array(),
-					'contentstyletype' => array(),
-					'cursor' => array(),
-					'direction' => array(),
-					'display' => array(),
-					'dominant-baseline' => array(),
-					'enable-background' => array(),
-					'externalresourcesrequired' => array(),
-					'fill' => array(),
-					'fill-opacity' => array(),
-					'fill-rule' => array(),
-					'filter' => array(),
-					'flood-color' => array(),
-					'flood-opacity' => array(),
-					'focusable' => array(),
-					'font-family' => array(),
-					'font-size' => array(),
-					'font-size-adjust' => array(),
-					'font-stretch' => array(),
-					'font-style' => array(),
-					'font-variant' => array(),
-					'font-weight' => array(),
-					'glyph-orientation-horizontal' => array(),
-					'glyph-orientation-vertical' => array(),
-					'height' => array(),
-					'image-rendering' => array(),
-					'kerning' => array(),
-					'letter-spacing' => array(),
-					'lighting-color' => array(),
-					'marker-end' => array(),
-					'marker-mid' => array(),
-					'marker-start' => array(),
-					'mask' => array(),
-					'opacity' => array(),
-					'overflow' => array(),
-					'pointer-events' => array(),
-					'preserveaspectratio' => array(),
-					'requiredextensions' => array(),
-					'requiredfeatures' => array(),
-					'shape-rendering' => array(),
-					'stop-color' => array(),
-					'stop-opacity' => array(),
-					'stroke' => array(),
-					'stroke-dasharray' => array(),
-					'stroke-dashoffset' => array(),
-					'stroke-linecap' => array(),
-					'stroke-linejoin' => array(),
-					'stroke-miterlimit' => array(),
-					'stroke-opacity' => array(),
-					'stroke-width' => array(),
-					'style' => array(
-						'blacklisted_value_regex' => '!important',
-					),
-					'systemlanguage' => array(),
-					'text-anchor' => array(),
-					'text-decoration' => array(),
-					'text-rendering' => array(),
-					'unicode-bidi' => array(),
-					'vector-effect' => array(),
-					'version' => array(
-						'value' => array(
-							'1.0',
-							'1.1',
-						),
-					),
-					'viewbox' => array(),
-					'visibility' => array(),
-					'width' => array(),
-					'word-spacing' => array(),
-					'writing-mode' => array(),
-					'x' => array(),
-					'xml:lang' => array(),
-					'xml:space' => array(),
-					'xmlns' => array(),
-					'xmlns:xlink' => array(),
-					'y' => array(),
-					'zoomandpan' => array(),
-				),
-				'tag_spec' => array(
-					'spec_url' => 'https://www.ampproject.org/docs/reference/spec#svg',
-				),
-			),
-		),
-		'switch' => array(
-			array(
-				'attr_spec_list' => array(
-					'alignment-baseline' => array(),
-					'baseline-shift' => array(),
-					'clip' => array(),
-					'clip-path' => array(),
-					'clip-rule' => array(),
-					'color' => array(),
-					'color-interpolation' => array(),
-					'color-interpolation-filters' => array(),
-					'color-profile' => array(),
-					'color-rendering' => array(),
-					'cursor' => array(),
-					'direction' => array(),
-					'display' => array(),
-					'dominant-baseline' => array(),
-					'enable-background' => array(),
-					'fill' => array(),
-					'fill-opacity' => array(),
-					'fill-rule' => array(),
-					'filter' => array(),
-					'flood-color' => array(),
-					'flood-opacity' => array(),
-					'focusable' => array(),
-					'font-family' => array(),
-					'font-size' => array(),
-					'font-size-adjust' => array(),
-					'font-stretch' => array(),
-					'font-style' => array(),
-					'font-variant' => array(),
-					'font-weight' => array(),
-					'glyph-orientation-horizontal' => array(),
-					'glyph-orientation-vertical' => array(),
-					'image-rendering' => array(),
-					'kerning' => array(),
-					'letter-spacing' => array(),
-					'lighting-color' => array(),
-					'marker-end' => array(),
-					'marker-mid' => array(),
-					'marker-start' => array(),
-					'mask' => array(),
-					'opacity' => array(),
-					'overflow' => array(),
-					'pointer-events' => array(),
-					'requiredextensions' => array(),
-					'requiredfeatures' => array(),
-					'shape-rendering' => array(),
-					'stop-color' => array(),
-					'stop-opacity' => array(),
-					'stroke' => array(),
-					'stroke-dasharray' => array(),
-					'stroke-dashoffset' => array(),
-					'stroke-linecap' => array(),
-					'stroke-linejoin' => array(),
-					'stroke-miterlimit' => array(),
-					'stroke-opacity' => array(),
-					'stroke-width' => array(),
-					'style' => array(
-						'blacklisted_value_regex' => '!important',
-					),
-					'systemlanguage' => array(),
-					'text-anchor' => array(),
-					'text-decoration' => array(),
-					'text-rendering' => array(),
-					'unicode-bidi' => array(),
-					'vector-effect' => array(),
-					'visibility' => array(),
-					'word-spacing' => array(),
-					'writing-mode' => array(),
-					'xml:lang' => array(),
-					'xml:space' => array(),
-					'xmlns' => array(),
-					'xmlns:xlink' => array(),
-				),
-				'tag_spec' => array(
-					'mandatory_ancestor' => 'svg',
-					'spec_url' => 'https://www.ampproject.org/docs/reference/spec#svg',
-				),
-			),
-		),
-		'symbol' => array(
-			array(
-				'attr_spec_list' => array(
-					'alignment-baseline' => array(),
-					'baseline-shift' => array(),
-					'clip' => array(),
-					'clip-path' => array(),
-					'clip-rule' => array(),
-					'color' => array(),
-					'color-interpolation' => array(),
-					'color-interpolation-filters' => array(),
-					'color-profile' => array(),
-					'color-rendering' => array(),
-					'cursor' => array(),
-					'direction' => array(),
-					'display' => array(),
-					'dominant-baseline' => array(),
-					'enable-background' => array(),
-					'externalresourcesrequired' => array(),
-					'fill' => array(),
-					'fill-opacity' => array(),
-					'fill-rule' => array(),
-					'filter' => array(),
-					'flood-color' => array(),
-					'flood-opacity' => array(),
-					'focusable' => array(),
-					'font-family' => array(),
-					'font-size' => array(),
-					'font-size-adjust' => array(),
-					'font-stretch' => array(),
-					'font-style' => array(),
-					'font-variant' => array(),
-					'font-weight' => array(),
-					'glyph-orientation-horizontal' => array(),
-					'glyph-orientation-vertical' => array(),
-					'image-rendering' => array(),
-					'kerning' => array(),
-					'letter-spacing' => array(),
-					'lighting-color' => array(),
-					'marker-end' => array(),
-					'marker-mid' => array(),
-					'marker-start' => array(),
-					'mask' => array(),
-					'opacity' => array(),
-					'overflow' => array(),
-					'pointer-events' => array(),
-					'preserveaspectratio' => array(),
-					'shape-rendering' => array(),
-					'stop-color' => array(),
-					'stop-opacity' => array(),
-					'stroke' => array(),
-					'stroke-dasharray' => array(),
-					'stroke-dashoffset' => array(),
-					'stroke-linecap' => array(),
-					'stroke-linejoin' => array(),
-					'stroke-miterlimit' => array(),
-					'stroke-opacity' => array(),
-					'stroke-width' => array(),
-					'style' => array(
-						'blacklisted_value_regex' => '!important',
-					),
-					'text-anchor' => array(),
-					'text-decoration' => array(),
-					'text-rendering' => array(),
-					'unicode-bidi' => array(),
-					'vector-effect' => array(),
-					'viewbox' => array(),
-					'visibility' => array(),
-					'word-spacing' => array(),
-					'writing-mode' => array(),
-					'xml:lang' => array(),
-					'xml:space' => array(),
-					'xmlns' => array(),
-					'xmlns:xlink' => array(),
-				),
-				'tag_spec' => array(
-					'mandatory_ancestor' => 'svg',
-					'spec_url' => 'https://www.ampproject.org/docs/reference/spec#svg',
-				),
-			),
-		),
-		'table' => array(
-			array(
-				'attr_spec_list' => array(
-					'align' => array(),
-					'bgcolor' => array(),
-					'border' => array(
-						'value' => array(
-							'0',
-							'1',
-						),
-					),
-					'cellpadding' => array(),
-					'cellspacing' => array(),
-					'sortable' => array(),
-					'width' => array(),
-				),
-				'tag_spec' => array(),
-			),
-		),
-		'tbody' => array(
-			array(
-				'attr_spec_list' => array(),
-				'tag_spec' => array(),
-			),
-		),
-		'td' => array(
-			array(
-				'attr_spec_list' => array(
-					'align' => array(),
-					'bgcolor' => array(),
-					'colspan' => array(),
-					'headers' => array(),
-					'height' => array(),
-					'rowspan' => array(),
-					'valign' => array(),
-					'width' => array(),
-				),
-				'tag_spec' => array(),
-			),
-		),
-		'template' => array(
-			array(
-				'attr_spec_list' => array(
-					'date-template' => array(
-						'dispatch_key' => 1,
-						'mandatory' => true,
-						'value' => array(
-							'',
-						),
-					),
-					'dates' => array(),
-					'default' => array(),
-					'type' => array(
-						'mandatory' => true,
-						'value' => array(
-							'amp-mustache',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'mandatory_parent' => 'amp-date-picker',
-					'requires_extension' => array(
-						'amp-mustache',
-					),
-					'spec_name' => 'amp-date-picker > template [date-template]',
-				),
-			),
-			array(
-				'attr_spec_list' => array(
-					'info-template' => array(
-						'dispatch_key' => 1,
-						'mandatory' => true,
-					),
-					'type' => array(
-						'mandatory' => true,
-						'value' => array(
-							'amp-mustache',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'mandatory_parent' => 'amp-date-picker',
-					'requires_extension' => array(
-						'amp-mustache',
-					),
-					'spec_name' => 'amp-date-picker > template [info-template]',
-				),
-			),
-			array(
-				'attr_spec_list' => array(
-					'type' => array(
-						'mandatory' => true,
-						'value' => array(
-							'amp-mustache',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'disallowed_ancestor' => array(
-						'template',
-						'amp-date-picker',
-						'amp-story-auto-ads',
-						'form div [submit-success][template]',
-						'form div [submit-error][template]',
-						'form div [submitting][template]',
-						'form div [verify-error][template]',
-					),
-					'requires_extension' => array(
-						'amp-mustache',
-					),
-				),
-			),
-			array(
-				'attr_spec_list' => array(
-					'type' => array(
-						'dispatch_key' => 3,
-						'mandatory' => true,
-						'value' => array(
-							'amp-mustache',
-						),
-					),
-				),
-				'tag_spec' => array(
-					'mandatory_parent' => 'amp-story-auto-ads',
-					'reference_points' => array(
-						'AMP-STORY-GRID-LAYER animate-in' => array(
-							'mandatory' => false,
-							'unique' => false,
-						),
-						'AMP-STORY-GRID-LAYER default' => array(
-							'mandatory' => false,
-							'unique' => false,
-						),
-					),
-					'requires_extension' => array(
-						'amp-mustache',
-					),
-					'spec_name' => 'amp-story-auto-ads > template',
-				),
-			),
-		),
-		'text' => array(
-			array(
-				'attr_spec_list' => array(
-					'alignment-baseline' => array(),
-					'baseline-shift' => array(),
-					'clip' => array(),
-					'clip-path' => array(),
-					'clip-rule' => array(),
-					'color' => array(),
-					'color-interpolation' => array(),
-					'color-interpolation-filters' => array(),
-					'color-profile' => array(),
-					'color-rendering' => array(),
-					'cursor' => array(),
-					'direction' => array(),
-					'display' => array(),
-					'dominant-baseline' => array(),
-					'dx' => array(),
-					'dy' => array(),
-					'enable-background' => array(),
-					'externalresourcesrequired' => array(),
-					'fill' => array(),
-					'fill-opacity' => array(),
-					'fill-rule' => array(),
-					'filter' => array(),
-					'flood-color' => array(),
-					'flood-opacity' => array(),
-					'focusable' => array(),
-					'font-family' => array(),
-					'font-size' => array(),
-					'font-size-adjust' => array(),
-					'font-stretch' => array(),
-					'font-style' => array(),
-					'font-variant' => array(),
-					'font-weight' => array(),
-					'glyph-orientation-horizontal' => array(),
-					'glyph-orientation-vertical' => array(),
-					'image-rendering' => array(),
-					'kerning' => array(),
-					'lengthadjust' => array(),
-					'letter-spacing' => array(),
-					'lighting-color' => array(),
-					'marker-end' => array(),
-					'marker-mid' => array(),
-					'marker-start' => array(),
-					'mask' => array(),
-					'opacity' => array(),
-					'overflow' => array(),
-					'pointer-events' => array(),
-					'requiredextensions' => array(),
-					'requiredfeatures' => array(),
-					'rotate' => array(),
-					'shape-rendering' => array(),
-					'stop-color' => array(),
-					'stop-opacity' => array(),
-					'stroke' => array(),
-					'stroke-dasharray' => array(),
-					'stroke-dashoffset' => array(),
-					'stroke-linecap' => array(),
-					'stroke-linejoin' => array(),
-					'stroke-miterlimit' => array(),
-					'stroke-opacity' => array(),
-					'stroke-width' => array(),
-					'style' => array(
-						'blacklisted_value_regex' => '!important',
-					),
-					'systemlanguage' => array(),
-					'text-anchor' => array(),
-					'text-decoration' => array(),
-					'text-rendering' => array(),
-					'textlength' => array(),
-					'transform' => array(),
-					'unicode-bidi' => array(),
-					'vector-effect' => array(),
-					'visibility' => array(),
-					'word-spacing' => array(),
-					'writing-mode' => array(),
-					'x' => array(),
-					'xml:lang' => array(),
-					'xml:space' => array(),
-					'xmlns' => array(),
-					'xmlns:xlink' => array(),
-					'y' => array(),
-				),
-				'tag_spec' => array(
-					'mandatory_ancestor' => 'svg',
-					'spec_url' => 'https://www.ampproject.org/docs/reference/spec#svg',
-				),
-			),
-		),
-		'textarea' => array(
-			array(
-				'attr_spec_list' => array(
-					'[autocomplete]' => array(),
-					'[autofocus]' => array(),
-					'[cols]' => array(),
-					'[disabled]' => array(),
-					'[maxlength]' => array(),
-					'[minlength]' => array(),
-					'[placeholder]' => array(),
-					'[readonly]' => array(),
-					'[required]' => array(),
-					'[rows]' => array(),
-					'[selectiondirection]' => array(),
-					'[selectionend]' => array(),
-					'[selectionstart]' => array(),
-					'[spellcheck]' => array(),
-					'[wrap]' => array(),
-					'autocomplete' => array(),
-					'autofocus' => array(),
-					'cols' => array(),
-					'disabled' => array(),
-					'maxlength' => array(),
-					'minlength' => array(),
-					'name' => array(
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-					),
-					'no-verify' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'placeholder' => array(),
-					'readonly' => array(),
-					'required' => array(),
-					'rows' => array(),
-					'selectiondirection' => array(),
-					'selectionend' => array(),
-					'selectionstart' => array(),
-					'spellcheck' => array(),
-					'wrap' => array(),
-				),
-				'tag_spec' => array(
-					'spec_url' => 'https://www.ampproject.org/docs/reference/components/amp-form',
-				),
-			),
-		),
-		'textpath' => array(
-			array(
-				'attr_spec_list' => array(
-					'alignment-baseline' => array(),
-					'baseline-shift' => array(),
-					'clip' => array(),
-					'clip-path' => array(),
-					'clip-rule' => array(),
-					'color' => array(),
-					'color-interpolation' => array(),
-					'color-interpolation-filters' => array(),
-					'color-profile' => array(),
-					'color-rendering' => array(),
-					'cursor' => array(),
-					'direction' => array(),
-					'display' => array(),
-					'dominant-baseline' => array(),
-					'enable-background' => array(),
-					'externalresourcesrequired' => array(),
-					'fill' => array(),
-					'fill-opacity' => array(),
-					'fill-rule' => array(),
-					'filter' => array(),
-					'flood-color' => array(),
-					'flood-opacity' => array(),
-					'focusable' => array(),
-					'font-family' => array(),
-					'font-size' => array(),
-					'font-size-adjust' => array(),
-					'font-stretch' => array(),
-					'font-style' => array(),
-					'font-variant' => array(),
-					'font-weight' => array(),
-					'glyph-orientation-horizontal' => array(),
-					'glyph-orientation-vertical' => array(),
-					'image-rendering' => array(),
-					'kerning' => array(),
-					'letter-spacing' => array(),
-					'lighting-color' => array(),
-					'marker-end' => array(),
-					'marker-mid' => array(),
-					'marker-start' => array(),
-					'mask' => array(),
-					'method' => array(),
-					'opacity' => array(),
-					'overflow' => array(),
-					'pointer-events' => array(),
-					'requiredextensions' => array(),
-					'requiredfeatures' => array(),
-					'shape-rendering' => array(),
-					'spacing' => array(),
-					'startoffset' => array(),
-					'stop-color' => array(),
-					'stop-opacity' => array(),
-					'stroke' => array(),
-					'stroke-dasharray' => array(),
-					'stroke-dashoffset' => array(),
-					'stroke-linecap' => array(),
-					'stroke-linejoin' => array(),
-					'stroke-miterlimit' => array(),
-					'stroke-opacity' => array(),
-					'stroke-width' => array(),
-					'style' => array(
-						'blacklisted_value_regex' => '!important',
-					),
-					'systemlanguage' => array(),
-					'text-anchor' => array(),
-					'text-decoration' => array(),
-					'text-rendering' => array(),
-					'unicode-bidi' => array(),
-					'vector-effect' => array(),
-					'visibility' => array(),
-					'word-spacing' => array(),
-					'writing-mode' => array(),
-					'xlink:actuate' => array(),
-					'xlink:arcrole' => array(),
-					'xlink:href' => array(
-						'alternative_names' => array(
-							'href',
-						),
-						'value_url' => array(
-							'allow_empty' => false,
-							'protocol' => array(
-								'http',
-								'https',
-							),
-						),
-					),
-					'xlink:role' => array(),
-					'xlink:show' => array(),
-					'xlink:title' => array(),
-					'xlink:type' => array(),
-					'xml:lang' => array(),
-					'xml:space' => array(),
-					'xmlns' => array(),
-					'xmlns:xlink' => array(),
-				),
-				'tag_spec' => array(
-					'mandatory_ancestor' => 'svg',
-					'spec_url' => 'https://www.ampproject.org/docs/reference/spec#svg',
-				),
-			),
-		),
-		'tfoot' => array(
-			array(
-				'attr_spec_list' => array(),
-				'tag_spec' => array(),
-			),
-		),
-		'th' => array(
-			array(
-				'attr_spec_list' => array(
-					'abbr' => array(),
-					'align' => array(),
-					'bgcolor' => array(),
-					'colspan' => array(),
-					'headers' => array(),
-					'height' => array(),
-					'rowspan' => array(),
-					'scope' => array(),
-					'sorted' => array(),
-					'valign' => array(),
-					'width' => array(),
-				),
-				'tag_spec' => array(),
-			),
-		),
-		'thead' => array(
-			array(
-				'attr_spec_list' => array(),
-				'tag_spec' => array(),
-			),
-		),
-		'time' => array(
-			array(
-				'attr_spec_list' => array(
-					'datetime' => array(),
-				),
-				'tag_spec' => array(),
-			),
-		),
-		'title' => array(
-			array(
-				'attr_spec_list' => array(
-					'[text]' => array(),
-				),
-				'tag_spec' => array(
-					'spec_name' => 'title',
-				),
-			),
-			array(
-				'attr_spec_list' => array(
-					'style' => array(
-						'blacklisted_value_regex' => '!important',
-					),
-					'xml:lang' => array(),
-					'xml:space' => array(),
-					'xmlns' => array(),
-					'xmlns:xlink' => array(),
-				),
-				'tag_spec' => array(
-					'mandatory_ancestor' => 'svg',
-					'spec_name' => 'svg title',
-					'spec_url' => 'https://www.ampproject.org/docs/reference/spec#svg',
-				),
-			),
-		),
-		'tr' => array(
-			array(
-				'attr_spec_list' => array(
-					'align' => array(),
-					'bgcolor' => array(),
-					'height' => array(),
-					'valign' => array(),
-				),
-				'tag_spec' => array(),
-			),
-		),
-		'track' => array(
-			array(
-				'attr_spec_list' => array(
-					'default' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'kind' => array(
-						'value' => array(
-							'captions',
-							'chapters',
-							'descriptions',
-							'metadata',
-						),
-					),
-					'label' => array(),
-					'src' => array(
-						'blacklisted_value_regex' => '__amp_source_origin',
-						'mandatory' => true,
-						'value_url' => array(
-							'allow_relative' => false,
-							'protocol' => array(
-								'https',
-							),
-						),
-					),
-					'srclang' => array(),
-				),
-				'tag_spec' => array(
-					'mandatory_parent' => 'audio',
-					'spec_name' => 'audio > track',
-				),
-			),
-			array(
-				'attr_spec_list' => array(
-					'default' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'kind' => array(
-						'mandatory' => true,
-						'value_casei' => array(
-							'subtitles',
-						),
-					),
-					'label' => array(),
-					'src' => array(
-						'blacklisted_value_regex' => '__amp_source_origin',
-						'mandatory' => true,
-						'value_url' => array(
-							'allow_relative' => false,
-							'protocol' => array(
-								'https',
-							),
-						),
-					),
-					'srclang' => array(
-						'mandatory' => true,
-					),
-				),
-				'tag_spec' => array(
-					'mandatory_parent' => 'audio',
-					'spec_name' => 'audio > track[kind=subtitles]',
-				),
-			),
-			array(
-				'attr_spec_list' => array(
-					'default' => array(
-						'value' => array(
-							'',
-						),
-					),
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-							'captions',
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-							'descriptions',
-							'metadata',
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-					'src' => array(
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-						'mandatory' => true,
-						'value_url' => array(
-							'allow_relative' => false,
-							'protocol' => array(
-								'https',
-							),
-						),
-					),
-					'srclang' => array(),
-				),
-				'tag_spec' => array(
-					'mandatory_parent' => 'video',
-					'spec_name' => 'video > track',
-				),
-			),
-			array(
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-					'default' => array(
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-							'',
-						),
-					),
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-						'value_casei' => array(
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-						),
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-					'src' => array(
-						'blacklisted_value_regex' => '__amp_source_origin',
-						'mandatory' => true,
-						'value_url' => array(
-							'allow_relative' => false,
-							'protocol' => array(
-								'https',
-							),
-						),
-					),
-					'srclang' => array(
-						'mandatory' => true,
-					),
-				),
-				'tag_spec' => array(
-					'mandatory_parent' => 'video',
-					'spec_name' => 'video > track[kind=subtitles]',
-				),
-			),
-			array(
-				'attr_spec_list' => array(
-					'[label]' => array(),
-					'[src]' => array(),
-					'[srclang]' => array(),
-					'default' => array(
-						'value' => array(
-							'',
-						),
-					),
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-							'captions',
-							'chapters',
-							'descriptions',
-							'metadata',
-						),
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-					'label' => array(),
-					'src' => array(
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-						'mandatory' => true,
-						'value_url' => array(
-							'allow_relative' => false,
-							'protocol' => array(
-								'https',
-							),
-						),
-					),
-					'srclang' => array(),
-				),
-				'tag_spec' => array(
-					'mandatory_parent' => 'amp-audio',
-					'spec_name' => 'amp-audio > track',
-				),
-			),
-			array(
-				'attr_spec_list' => array(
-					'[label]' => array(),
-					'[src]' => array(),
-					'[srclang]' => array(),
-					'default' => array(
-						'value' => array(
-							'',
-						),
-					),
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-						'value_casei' => array(
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-						),
-					),
-					'label' => array(),
-					'src' => array(
-						'blacklisted_value_regex' => '__amp_source_origin',
-						'mandatory' => true,
-						'value_url' => array(
-							'allow_relative' => false,
-							'protocol' => array(
-								'https',
-							),
-						),
-					),
-					'srclang' => array(
-						'mandatory' => true,
-					),
-				),
-				'tag_spec' => array(
-					'mandatory_parent' => 'amp-audio',
-					'spec_name' => 'amp-audio > track[kind=subtitles]',
-				),
-			),
-			array(
-				'attr_spec_list' => array(
-					'[label]' => array(),
-					'[src]' => array(),
-					'[srclang]' => array(),
-					'default' => array(
-						'value' => array(
-							'',
-						),
-					),
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-							'captions',
-							'chapters',
-							'descriptions',
-							'metadata',
-						),
-					),
-					'label' => array(),
-					'src' => array(
-						'blacklisted_value_regex' => '__amp_source_origin',
-						'mandatory' => true,
-						'value_url' => array(
-							'allow_relative' => false,
-							'protocol' => array(
-								'https',
-							),
-						),
-					),
-					'srclang' => array(),
-				),
-				'tag_spec' => array(
-					'mandatory_parent' => 'amp-video',
-					'spec_name' => 'amp-video > track',
-				),
-			),
-			array(
-				'attr_spec_list' => array(
-					'[label]' => array(),
-					'[src]' => array(),
-					'[srclang]' => array(),
-					'default' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'kind' => array(
-						'mandatory' => true,
-						'value_casei' => array(
-							'subtitles',
-						),
-					),
-					'label' => array(),
-					'src' => array(
-						'blacklisted_value_regex' => '__amp_source_origin',
-						'mandatory' => true,
-						'value_url' => array(
-							'allow_relative' => false,
-							'protocol' => array(
-								'https',
-							),
-						),
-					),
-					'srclang' => array(
-						'mandatory' => true,
-					),
-				),
-				'tag_spec' => array(
-					'mandatory_parent' => 'amp-video',
-					'spec_name' => 'amp-video > track[kind=subtitles]',
-				),
-			),
-			array(
-				'attr_spec_list' => array(
-					'[label]' => array(),
-					'[src]' => array(),
-					'[srclang]' => array(),
-					'default' => array(
-						'value' => array(
-							'',
-						),
-					),
-					'kind' => array(
-						'mandatory' => true,
-						'value_casei' => array(
-							'subtitles',
-						),
-					),
-					'label' => array(),
-					'src' => array(
-						'blacklisted_value_regex' => '__amp_source_origin',
-						'mandatory' => true,
-						'value_url' => array(
-							'allow_relative' => false,
-							'protocol' => array(
-								'https',
-							),
-						),
-					),
-					'srclang' => array(
-						'mandatory' => true,
-					),
-				),
-				'tag_spec' => array(
-					'mandatory_parent' => 'amp-ima-video',
-					'spec_name' => 'amp-ima-video > track[kind=subtitles]',
-					'spec_url' => 'https://www.ampproject.org/docs/reference/components/amp-ima-video',
-				),
-			),
-		),
-		'tref' => array(
-			array(
-				'attr_spec_list' => array(
-					'alignment-baseline' => array(),
-					'baseline-shift' => array(),
-					'clip' => array(),
-					'clip-path' => array(),
-					'clip-rule' => array(),
-					'color' => array(),
-					'color-interpolation' => array(),
-					'color-interpolation-filters' => array(),
-					'color-profile' => array(),
-					'color-rendering' => array(),
-					'cursor' => array(),
-					'direction' => array(),
-					'display' => array(),
-					'dominant-baseline' => array(),
-					'enable-background' => array(),
-					'externalresourcesrequired' => array(),
-					'fill' => array(),
-					'fill-opacity' => array(),
-					'fill-rule' => array(),
-					'filter' => array(),
-					'flood-color' => array(),
-					'flood-opacity' => array(),
-					'focusable' => array(),
-					'font-family' => array(),
-					'font-size' => array(),
-					'font-size-adjust' => array(),
-					'font-stretch' => array(),
-					'font-style' => array(),
-					'font-variant' => array(),
-					'font-weight' => array(),
-					'glyph-orientation-horizontal' => array(),
-					'glyph-orientation-vertical' => array(),
-					'image-rendering' => array(),
-					'kerning' => array(),
-					'letter-spacing' => array(),
-					'lighting-color' => array(),
-					'marker-end' => array(),
-					'marker-mid' => array(),
-					'marker-start' => array(),
-					'mask' => array(),
-					'opacity' => array(),
-					'overflow' => array(),
-					'pointer-events' => array(),
-					'requiredextensions' => array(),
-					'requiredfeatures' => array(),
-					'shape-rendering' => array(),
-					'stop-color' => array(),
-					'stop-opacity' => array(),
-					'stroke' => array(),
-					'stroke-dasharray' => array(),
-					'stroke-dashoffset' => array(),
-					'stroke-linecap' => array(),
-					'stroke-linejoin' => array(),
-					'stroke-miterlimit' => array(),
-					'stroke-opacity' => array(),
-					'stroke-width' => array(),
-					'style' => array(
-						'blacklisted_value_regex' => '!important',
-					),
-					'systemlanguage' => array(),
-					'text-anchor' => array(),
-					'text-decoration' => array(),
-					'text-rendering' => array(),
-					'unicode-bidi' => array(),
-					'vector-effect' => array(),
-					'visibility' => array(),
-					'word-spacing' => array(),
-					'writing-mode' => array(),
-					'xlink:actuate' => array(),
-					'xlink:arcrole' => array(),
-					'xlink:href' => array(
-						'alternative_names' => array(
-							'href',
-						),
-						'value_url' => array(
-							'allow_empty' => false,
-							'protocol' => array(
-								'http',
-								'https',
-							),
-						),
-					),
-					'xlink:role' => array(),
-					'xlink:show' => array(),
-					'xlink:title' => array(),
-					'xlink:type' => array(),
-					'xml:lang' => array(),
-					'xml:space' => array(),
-					'xmlns' => array(),
-					'xmlns:xlink' => array(),
-				),
-				'tag_spec' => array(
-					'mandatory_ancestor' => 'svg',
-					'spec_url' => 'https://www.ampproject.org/docs/reference/spec#svg',
-				),
-			),
-		),
-		'tspan' => array(
-			array(
-				'attr_spec_list' => array(
-					'alignment-baseline' => array(),
-					'baseline-shift' => array(),
-					'clip' => array(),
-					'clip-path' => array(),
-					'clip-rule' => array(),
-					'color' => array(),
-					'color-interpolation' => array(),
-					'color-interpolation-filters' => array(),
-					'color-profile' => array(),
-					'color-rendering' => array(),
-					'cursor' => array(),
-					'direction' => array(),
-					'display' => array(),
-					'dominant-baseline' => array(),
-					'dx' => array(),
-					'dy' => array(),
-					'enable-background' => array(),
-					'externalresourcesrequired' => array(),
-					'fill' => array(),
-					'fill-opacity' => array(),
-					'fill-rule' => array(),
-					'filter' => array(),
-					'flood-color' => array(),
-					'flood-opacity' => array(),
-					'focusable' => array(),
-					'font-family' => array(),
-					'font-size' => array(),
-					'font-size-adjust' => array(),
-					'font-stretch' => array(),
-					'font-style' => array(),
-					'font-variant' => array(),
-					'font-weight' => array(),
-					'glyph-orientation-horizontal' => array(),
-					'glyph-orientation-vertical' => array(),
-					'image-rendering' => array(),
-					'kerning' => array(),
-					'lengthadjust' => array(),
-					'letter-spacing' => array(),
-					'lighting-color' => array(),
-					'marker-end' => array(),
-					'marker-mid' => array(),
-					'marker-start' => array(),
-					'mask' => array(),
-					'opacity' => array(),
-					'overflow' => array(),
-					'pointer-events' => array(),
-					'requiredextensions' => array(),
-					'requiredfeatures' => array(),
-					'rotate' => array(),
-					'shape-rendering' => array(),
-					'stop-color' => array(),
-					'stop-opacity' => array(),
-					'stroke' => array(),
-					'stroke-dasharray' => array(),
-					'stroke-dashoffset' => array(),
-					'stroke-linecap' => array(),
-					'stroke-linejoin' => array(),
-					'stroke-miterlimit' => array(),
-					'stroke-opacity' => array(),
-					'stroke-width' => array(),
-					'style' => array(
-						'blacklisted_value_regex' => '!important',
-					),
-					'systemlanguage' => array(),
-					'text-anchor' => array(),
-					'text-decoration' => array(),
-					'text-rendering' => array(),
-					'textlength' => array(),
-					'unicode-bidi' => array(),
-					'vector-effect' => array(),
-					'visibility' => array(),
-					'word-spacing' => array(),
-					'writing-mode' => array(),
-					'x' => array(),
-					'xml:lang' => array(),
-					'xml:space' => array(),
-					'xmlns' => array(),
-					'xmlns:xlink' => array(),
-					'y' => array(),
-				),
-				'tag_spec' => array(
-					'mandatory_ancestor' => 'svg',
-					'spec_url' => 'https://www.ampproject.org/docs/reference/spec#svg',
-				),
-			),
-		),
-		'tt' => array(
-			array(
-				'attr_spec_list' => array(),
-				'tag_spec' => array(),
-			),
-		),
-		'u' => array(
-			array(
-				'attr_spec_list' => array(),
-				'tag_spec' => array(),
-			),
-		),
-		'ul' => array(
-			array(
-				'attr_spec_list' => array(),
-				'tag_spec' => array(),
-			),
-		),
-		'use' => array(
-			array(
-				'attr_spec_list' => array(
-					'alignment-baseline' => array(),
-					'baseline-shift' => array(),
-					'clip' => array(),
-					'clip-path' => array(),
-					'clip-rule' => array(),
-					'color' => array(),
-					'color-interpolation' => array(),
-					'color-interpolation-filters' => array(),
-					'color-profile' => array(),
-					'color-rendering' => array(),
-					'cursor' => array(),
-					'direction' => array(),
-					'display' => array(),
-					'dominant-baseline' => array(),
-					'enable-background' => array(),
-					'externalresourcesrequired' => array(),
-					'fill' => array(),
-					'fill-opacity' => array(),
-					'fill-rule' => array(),
-					'filter' => array(),
-					'flood-color' => array(),
-					'flood-opacity' => array(),
-					'focusable' => array(),
-					'font-family' => array(),
-					'font-size' => array(),
-					'font-size-adjust' => array(),
-					'font-stretch' => array(),
-					'font-style' => array(),
-					'font-variant' => array(),
-					'font-weight' => array(),
-					'glyph-orientation-horizontal' => array(),
-					'glyph-orientation-vertical' => array(),
-					'height' => array(),
-					'image-rendering' => array(),
-					'kerning' => array(),
-					'letter-spacing' => array(),
-					'lighting-color' => array(),
-					'marker-end' => array(),
-					'marker-mid' => array(),
-					'marker-start' => array(),
-					'mask' => array(),
-					'opacity' => array(),
-					'overflow' => array(),
-					'pointer-events' => array(),
-					'requiredextensions' => array(),
-					'requiredfeatures' => array(),
-					'shape-rendering' => array(),
-					'stop-color' => array(),
-					'stop-opacity' => array(),
-					'stroke' => array(),
-					'stroke-dasharray' => array(),
-					'stroke-dashoffset' => array(),
-					'stroke-linecap' => array(),
-					'stroke-linejoin' => array(),
-					'stroke-miterlimit' => array(),
-					'stroke-opacity' => array(),
-					'stroke-width' => array(),
-					'style' => array(
-						'blacklisted_value_regex' => '!important',
-					),
-					'systemlanguage' => array(),
-					'text-anchor' => array(),
-					'text-decoration' => array(),
-					'text-rendering' => array(),
-					'transform' => array(),
-					'unicode-bidi' => array(),
-					'vector-effect' => array(),
-					'visibility' => array(),
-					'width' => array(),
-					'word-spacing' => array(),
-					'writing-mode' => array(),
-					'x' => array(),
-					'xlink:actuate' => array(),
-					'xlink:arcrole' => array(),
-					'xlink:href' => array(
-						'alternative_names' => array(
-							'href',
-						),
-						'value_url' => array(
-							'allow_empty' => false,
-							'protocol' => array(
-								'http',
-								'https',
-							),
-						),
-					),
-					'xlink:role' => array(),
-					'xlink:show' => array(),
-					'xlink:title' => array(),
-					'xlink:type' => array(),
-					'xml:lang' => array(),
-					'xml:space' => array(),
-					'xmlns' => array(),
-					'xmlns:xlink' => array(),
-					'y' => array(),
-				),
-				'tag_spec' => array(
-					'mandatory_ancestor' => 'svg',
-					'spec_url' => 'https://www.ampproject.org/docs/reference/spec#svg',
-				),
-			),
-		),
-		'var' => array(
-			array(
-				'attr_spec_list' => array(),
-				'tag_spec' => array(),
-			),
-		),
-		'video' => array(
-			array(
-				'attr_spec_list' => array(
-					'autoplay' => array(),
-					'controls' => array(),
-					'height' => array(),
-					'loop' => array(),
-					'muted' => array(),
-					'playsinline' => array(),
-					'poster' => array(),
-					'preload' => array(),
-					'src' => array(
-						'blacklisted_value_regex' => '__amp_source_origin',
-						'value_url' => array(
-							'allow_relative' => false,
-							'protocol' => array(
-								'data',
-								'https',
-							),
-						),
-					),
-					'width' => array(),
-				),
-				'tag_spec' => array(
-					'mandatory_ancestor' => 'noscript',
-					'mandatory_ancestor_suggested_alternative' => 'amp-video',
-					'spec_url' => 'https://www.ampproject.org/docs/reference/components/amp-video',
-				),
-			),
-		),
-		'view' => array(
-			array(
-				'attr_spec_list' => array(
-					'externalresourcesrequired' => array(),
-					'preserveaspectratio' => array(),
-					'style' => array(
-						'blacklisted_value_regex' => '!important',
-					),
-					'viewbox' => array(),
-					'viewtarget' => array(),
-					'xml:lang' => array(),
-					'xml:space' => array(),
-					'xmlns' => array(),
-					'xmlns:xlink' => array(),
-					'zoomandpan' => array(),
-				),
-				'tag_spec' => array(
-					'mandatory_ancestor' => 'svg',
-					'spec_url' => 'https://www.ampproject.org/docs/reference/spec#svg',
-				),
-			),
-		),
-		'vkern' => array(
-			array(
-				'attr_spec_list' => array(
-					'g1' => array(),
-					'g2' => array(),
-					'k' => array(),
-					'style' => array(
-						'blacklisted_value_regex' => '!important',
-					),
-					'u1' => array(),
-					'u2' => array(),
-					'xml:lang' => array(),
-					'xml:space' => array(),
-					'xmlns' => array(),
-					'xmlns:xlink' => array(),
-				),
-				'tag_spec' => array(
-					'mandatory_ancestor' => 'svg',
-					'spec_url' => 'https://www.ampproject.org/docs/reference/spec#svg',
-				),
-			),
-		),
-		'wbr' => array(
-			array(
-				'attr_spec_list' => array(),
-				'tag_spec' => array(),
-			),
-		),
-	);
-
-	private static $layout_allowed_attrs = array(
-		'[height]' => array(),
-		'[width]' => array(),
-		'height' => array(),
-		'heights' => array(),
-		'layout' => array(),
-		'sizes' => array(),
-		'width' => array(),
-	);
-
-
-	private static $globally_allowed_attrs = array(
-		'[aria-activedescendant]' => array(),
-		'[aria-atomic]' => array(),
-		'[aria-autocomplete]' => array(),
-		'[aria-busy]' => array(),
-		'[aria-checked]' => array(),
-		'[aria-controls]' => array(),
-		'[aria-describedby]' => array(),
-		'[aria-disabled]' => array(),
-		'[aria-dropeffect]' => array(),
-		'[aria-expanded]' => array(),
-		'[aria-flowto]' => array(),
-		'[aria-grabbed]' => array(),
-		'[aria-haspopup]' => array(),
-		'[aria-hidden]' => array(),
-		'[aria-invalid]' => array(),
-		'[aria-label]' => array(),
-		'[aria-labelledby]' => array(),
-		'[aria-level]' => array(),
-		'[aria-live]' => array(),
-		'[aria-multiline]' => array(),
-		'[aria-multiselectable]' => array(),
-		'[aria-orientation]' => array(),
-		'[aria-owns]' => array(),
-		'[aria-posinset]' => array(),
-		'[aria-pressed]' => array(),
-		'[aria-readonly]' => array(),
-		'[aria-relevant]' => array(),
-		'[aria-required]' => array(),
-		'[aria-selected]' => array(),
-		'[aria-setsize]' => array(),
-		'[aria-sort]' => array(),
-		'[aria-valuemax]' => array(),
-		'[aria-valuemin]' => array(),
-		'[aria-valuenow]' => array(),
-		'[aria-valuetext]' => array(),
-		'[class]' => array(),
-		'[hidden]' => array(),
-		'[text]' => array(),
-		'about' => array(),
-		'accesskey' => array(),
-		'amp-access' => array(),
-		'amp-access-behavior' => array(),
-		'amp-access-hide' => array(),
-		'amp-access-id' => array(),
-		'amp-access-loader' => array(),
-		'amp-access-loading' => array(),
-		'amp-access-off' => array(),
-		'amp-access-on' => array(),
-		'amp-access-show' => array(),
-		'amp-access-style' => array(),
-		'amp-access-template' => array(),
-		'amp-fx' => array(
-			'value_regex_casei' => '(fade-in|fade-in-scroll|fly-in-bottom|fly-in-left|fly-in-right|fly-in-top|parallax)(\\s|fade-in|fade-in-scroll|fly-in-bottom|fly-in-left|fly-in-right|fly-in-top|parallax)*',
-		),
-		'aria-activedescendant' => array(),
-		'aria-atomic' => array(),
-		'aria-autocomplete' => array(),
-		'aria-busy' => array(),
-		'aria-checked' => array(),
-		'aria-controls' => array(),
-		'aria-current' => array(),
-		'aria-describedby' => array(),
-		'aria-disabled' => array(),
-		'aria-dropeffect' => array(),
-		'aria-expanded' => array(),
-		'aria-flowto' => array(),
-		'aria-grabbed' => array(),
-		'aria-haspopup' => array(),
-		'aria-hidden' => array(),
-		'aria-invalid' => array(),
-		'aria-label' => array(),
-		'aria-labelledby' => array(),
-		'aria-level' => array(),
-		'aria-live' => array(),
-		'aria-multiline' => array(),
-		'aria-multiselectable' => array(),
-		'aria-orientation' => array(),
-		'aria-owns' => array(),
-		'aria-posinset' => array(),
-		'aria-pressed' => array(),
-		'aria-readonly' => array(),
-		'aria-relevant' => array(),
-		'aria-required' => array(),
-		'aria-selected' => array(),
-		'aria-setsize' => array(),
-		'aria-sort' => array(),
-		'aria-valuemax' => array(),
-		'aria-valuemin' => array(),
-		'aria-valuenow' => array(),
-		'aria-valuetext' => array(),
-		'class' => array(
-			'blacklisted_value_regex' => '(^|\\W)i-amphtml-',
-		),
-		'content' => array(),
-		'datatype' => array(),
-		'dir' => array(),
-		'draggable' => array(),
-		'fallback' => array(
-			'value' => array(
-				'',
-			),
-		),
-		'hidden' => array(
-			'value' => array(
-				'',
-			),
-		),
-		'i-amp-access-id' => array(),
-		'id' => array(
-			'blacklisted_value_regex' => '(^|\\s)(__amp_\\S*|__count__|__defineGetter__|__defineSetter__|__lookupGetter__|__lookupSetter__|__noSuchMethod__|__parent__|__proto__|__AMP_\\S*|\\$p|\\$proxy|acceptCharset|addEventListener|appendChild|assignedSlot|attachShadow|AMP|baseURI|checkValidity|childElementCount|childNodes|classList|className|clientHeight|clientLeft|clientTop|clientWidth|compareDocumentPosition|computedName|computedRole|contentEditable|createShadowRoot|enqueAction|firstChild|firstElementChild|getAnimations|getAttribute|getAttributeNS|getAttributeNode|getAttributeNodeNS|getBoundingClientRect|getClientRects|getDestinationInsertionPoints|getElementsByClassName|getElementsByTagName|getElementsByTagNameNS|getRootNode|hasAttribute|hasAttributeNS|hasAttributes|hasChildNodes|hasPointerCapture|i-amphtml-\\S*|innerHTML|innerText|inputMode|insertAdjacentElement|insertAdjacentHTML|insertAdjacentText|isContentEditable|isDefaultNamespace|isEqualNode|isSameNode|lastChild|lastElementChild|lookupNamespaceURI|namespaceURI|nextElementSibling|nextSibling|nodeName|nodeType|nodeValue|offsetHeight|offsetLeft|offsetParent|offsetTop|offsetWidth|outerHTML|outerText|ownerDocument|parentElement|parentNode|previousElementSibling|previousSibling|querySelector|querySelectorAll|releasePointerCapture|removeAttribute|removeAttributeNS|removeAttributeNode|removeChild|removeEventListener|replaceChild|reportValidity|requestPointerLock|scrollHeight|scrollIntoView|scrollIntoViewIfNeeded|scrollLeft|scrollWidth|setAttribute|setAttributeNS|setAttributeNode|setAttributeNodeNS|setPointerCapture|shadowRoot|styleMap|tabIndex|tagName|textContent|toString|valueOf|(webkit|ms|moz|o)dropzone|(webkit|moz|ms|o)MatchesSelector|(webkit|moz|ms|o)RequestFullScreen|(webkit|moz|ms|o)RequestFullscreen)(\\s|$)',
-		),
-		'inlist' => array(),
-		'itemid' => array(),
-		'itemprop' => array(),
-		'itemref' => array(),
-		'itemscope' => array(),
-		'itemtype' => array(),
-		'lang' => array(),
-		'on' => array(),
-		'overflow' => array(),
-		'placeholder' => array(
-			'value' => array(
-				'',
-			),
-		),
-		'prefix' => array(),
-		'property' => array(),
-		'rel' => array(
-			'blacklisted_value_regex' => '(^|\\s)(canonical|components|dns-prefetch|import|manifest|preconnect|preload|prerender|serviceworker|stylesheet|subresource)(\\s|$)',
-		),
-		'resource' => array(),
-		'rev' => array(),
-		'role' => array(),
-		'style' => array(
-			'blacklisted_value_regex' => '(!important|<!--)',
-		),
-		'subscriptions-action' => array(),
-		'subscriptions-actions' => array(
-			'value' => array(
-				'',
-			),
-		),
-		'subscriptions-decorate' => array(),
-		'subscriptions-dialog' => array(
-			'value' => array(
-				'',
-			),
-		),
-		'subscriptions-display' => array(),
-		'subscriptions-section' => array(
-			'value_casei' => array(
-				'actions',
-				'content',
-				'content-not-granted',
-				'loading',
-			),
-		),
-		'subscriptions-service' => array(),
-		'tabindex' => array(),
-		'title' => array(),
-		'translate' => array(),
-		'typeof' => array(),
-		'validation-for' => array(),
-		'visible-when-invalid' => array(
-			'value' => array(
-				'badInput',
-				'customError',
-				'patternMismatch',
-				'rangeOverflow',
-				'rangeUnderflow',
-				'stepMismatch',
-				'tooLong',
-				'typeMismatch',
-				'valueMissing',
-			),
-		),
-		'vocab' => array(),
-	);
-
-
-	private static $reference_points = array(
-		'AMP-CAROUSEL lightbox [child]' => array(
-			'attr_spec_list' => array(
-				'lightbox-thumbnail-id' => array(
-					'value_regex_casei' => '^[a-z][a-z\\d_-]*',
-				),
-			),
-			'tag_spec' => array(
-				'spec_name' => 'AMP-CAROUSEL lightbox [child]',
-			),
-		),
-		'AMP-CAROUSEL lightbox [lightbox-exclude]' => array(
-			'attr_spec_list' => array(
-				'lightbox-exclude' => array(
-					'mandatory' => true,
-				),
-			),
-			'tag_spec' => array(
-				'spec_name' => 'AMP-CAROUSEL lightbox [lightbox-exclude]',
-			),
-		),
-		'AMP-LIVE-LIST [items]' => array(
-			'attr_spec_list' => array(
-				'items' => array(
-					'mandatory' => true,
-				),
-			),
-			'tag_spec' => array(
-				'reference_points' => array(
-					'AMP-LIVE-LIST [items] item' => array(
-						'mandatory' => false,
-						'unique' => false,
-					),
-				),
-				'spec_name' => 'AMP-LIVE-LIST [items]',
-				'spec_url' => 'https://www.ampproject.org/docs/reference/components/amp-live-list#items',
-			),
-		),
-		'AMP-LIVE-LIST [items] item' => array(
-			'attr_spec_list' => array(
-				'data-sort-time' => array(
-					'mandatory' => true,
-				),
-				'data-tombstone' => array(),
-				'data-update-time' => array(),
-				'id' => array(
-					'mandatory' => true,
-				),
-			),
-			'tag_spec' => array(
-				'spec_name' => 'AMP-LIVE-LIST [items] item',
-				'spec_url' => 'https://www.ampproject.org/docs/reference/components/amp-live-list#items',
-			),
-		),
-		'AMP-LIVE-LIST [pagination]' => array(
-			'attr_spec_list' => array(
-				'pagination' => array(
-					'mandatory' => true,
-				),
-			),
-			'tag_spec' => array(
-				'spec_name' => 'AMP-LIVE-LIST [pagination]',
-				'spec_url' => 'https://www.ampproject.org/docs/reference/components/amp-live-list#pagination',
-			),
-		),
-		'AMP-LIVE-LIST [update]' => array(
-			'attr_spec_list' => array(
-				'update' => array(
-					'mandatory' => true,
-				),
-			),
-			'tag_spec' => array(
-				'spec_name' => 'AMP-LIVE-LIST [update]',
-				'spec_url' => 'https://www.ampproject.org/docs/reference/components/amp-live-list#update',
-			),
-		),
-		'AMP-NEXT-PAGE > [separator]' => array(
-			'attr_spec_list' => array(
-				'separator' => array(
-					'mandatory' => true,
-				),
-			),
-			'tag_spec' => array(
-				'mandatory_parent' => 'amp-next-page',
-				'spec_name' => 'AMP-NEXT-PAGE > [separator]',
-			),
-		),
-		'AMP-SELECTOR child' => array(
-			'attr_spec_list' => array(),
-			'tag_spec' => array(
-				'reference_points' => array(
-					'AMP-SELECTOR child' => array(
-						'mandatory' => false,
-						'unique' => false,
-					),
-					'AMP-SELECTOR option' => array(
-						'mandatory' => false,
-						'unique' => false,
-					),
-				),
-				'spec_name' => 'AMP-SELECTOR child',
-			),
-		),
-		'AMP-SELECTOR option' => array(
-			'attr_spec_list' => array(
-				'disabled' => array(
-					'value' => array(
-						'',
-					),
-				),
-				'option' => array(
-					'mandatory' => true,
-				),
-				'selected' => array(
-					'value' => array(
-						'',
-					),
-				),
-			),
-			'tag_spec' => array(
-				'spec_name' => 'AMP-SELECTOR option',
-				'spec_url' => 'https://www.ampproject.org/docs/reference/components/amp-selector',
-			),
-		),
-		'AMP-STORY-CTA-LAYER animate-in' => array(
-			'attr_spec_list' => array(
-				'animate-in' => array(
-					'value' => array(
-						'drop',
-						'fade-in',
-						'fly-in-bottom',
-						'fly-in-left',
-						'fly-in-right',
-						'fly-in-top',
-						'pan-down',
-						'pan-left',
-						'pan-right',
-						'pan-up',
-						'pulse',
-						'rotate-in-left',
-						'rotate-in-right',
-						'twirl-in',
-						'whoosh-in-left',
-						'whoosh-in-right',
-						'zoom-in',
-						'zoom-out',
-					),
-				),
-				'animate-in-after' => array(),
-				'animate-in-delay' => array(),
-				'animate-in-duration' => array(),
-			),
-			'tag_spec' => array(
-				'reference_points' => array(
-					'AMP-STORY-CTA-LAYER animate-in' => array(
-						'mandatory' => false,
-						'unique' => false,
-					),
-				),
-				'spec_name' => 'AMP-STORY-CTA-LAYER animate-in',
-				'spec_url' => 'https://www.ampproject.org/docs/reference/components/amp-story',
-			),
-		),
-		'AMP-STORY-GRID-LAYER animate-in' => array(
-			'attr_spec_list' => array(
-				'animate-in' => array(
-					'value' => array(
-						'drop',
-						'fade-in',
-						'fly-in-bottom',
-						'fly-in-left',
-						'fly-in-right',
-						'fly-in-top',
-						'pan-down',
-						'pan-left',
-						'pan-right',
-						'pan-up',
-						'pulse',
-						'rotate-in-left',
-						'rotate-in-right',
-						'twirl-in',
-						'whoosh-in-left',
-						'whoosh-in-right',
-						'zoom-in',
-						'zoom-out',
-					),
-				),
-				'animate-in-after' => array(),
-				'animate-in-delay' => array(),
-				'animate-in-duration' => array(),
-			),
-			'tag_spec' => array(
-				'reference_points' => array(
-					'AMP-STORY-GRID-LAYER animate-in' => array(
-						'mandatory' => false,
-						'unique' => false,
-					),
-				),
-				'spec_name' => 'AMP-STORY-GRID-LAYER animate-in',
-				'spec_url' => 'https://www.ampproject.org/docs/reference/components/amp-story',
-			),
-		),
-		'AMP-STORY-GRID-LAYER default' => array(
-			'attr_spec_list' => array(
-				'align-content' => array(
-					'value' => array(
-						'center',
-						'end',
-						'space-around',
-						'space-between',
-						'space-evenly',
-						'start',
-						'stretch',
-					),
-				),
-				'align-items' => array(
-					'value' => array(
-						'center',
-						'end',
-						'start',
-						'stretch',
-					),
-				),
-				'align-self' => array(
-					'value' => array(
-						'center',
-						'end',
-						'start',
-						'stretch',
-					),
-				),
-				'animate-in' => array(
-					'value' => array(
-						'drop',
-						'fade-in',
-						'fly-in-bottom',
-						'fly-in-left',
-						'fly-in-right',
-						'fly-in-top',
-						'pan-down',
-						'pan-left',
-						'pan-right',
-						'pan-up',
-						'pulse',
-						'rotate-in-left',
-						'rotate-in-right',
-						'twirl-in',
-						'whoosh-in-left',
-						'whoosh-in-right',
-						'zoom-in',
-						'zoom-out',
-					),
-				),
-				'animate-in-after' => array(),
-				'animate-in-delay' => array(),
-				'animate-in-duration' => array(),
-				'grid-area' => array(),
-				'justify-content' => array(
-					'value' => array(
-						'center',
-						'end',
-						'space-around',
-						'space-between',
-						'space-evenly',
-						'start',
-						'stretch',
-					),
-				),
-				'justify-items' => array(
-					'value' => array(
-						'center',
-						'end',
-						'start',
-						'stretch',
-					),
-				),
-				'justify-self' => array(
-					'value' => array(
-						'center',
-						'end',
-						'start',
-						'stretch',
-					),
-				),
-			),
-			'tag_spec' => array(
-				'reference_points' => array(
-					'AMP-STORY-GRID-LAYER animate-in' => array(
-						'mandatory' => false,
-						'unique' => false,
-					),
-				),
-				'spec_name' => 'AMP-STORY-GRID-LAYER default',
-				'spec_url' => 'https://www.ampproject.org/docs/reference/components/amp-story',
-			),
-		),
-	);
-
-
-	/**
-	 * Get allowed tags.
-	 *
-	 * @since 0.5
-	 * @return array Allowed tags.
-	 */
-	public static function get_allowed_tags() {
-		return self::$allowed_tags;
-	}
-
-	/**
-	 * Get allowed tag.
-	 *
-	 * Get the rules for a single tag so that the entire data structure needn't be passed around.
-	 *
-	 * @since 0.7
-	 * @param string $node_name Tag name.
-	 * @return array|null Allowed tag, or null if the tag does not exist.
-	 */
-	public static function get_allowed_tag( $node_name ) {
-		if ( isset( self::$allowed_tags[ $node_name ] ) ) {
-			return self::$allowed_tags[ $node_name ];
-		}
-		return null;
-	}
-
-	/**
-	 * Get reference point spec.
-	 *
-	 * @since 1.0
-	 * @param string $tag_spec_name Tag spec name.
-	 * @return array|null Reference point spec, or null if does not exist.
-	 */
-	public static function get_reference_point_spec( $tag_spec_name ) {
-		if ( isset( self::$reference_points[ $tag_spec_name ] ) ) {
-			return self::$reference_points[ $tag_spec_name ];
-		}
-		return null;
-	}
-
-	/**
-	 * Get list of globally-allowed attributes.
-	 *
-	 * @since 0.5
-	 * @return array Allowed tag.
-	 */
-	public static function get_allowed_attributes() {
-		return self::$globally_allowed_attrs;
-	}
-
-	/**
-	 * Get layout attributes.
-	 *
-	 * @since 0.5
-	 * @return array Allowed tag.
-	 */
-	public static function get_layout_attributes() {
-		return self::$layout_allowed_attrs;
-	}
-
-}
diff --git a/includes/templates/class-amp-post-template.php b/includes/templates/class-amp-post-template.php
index 1e4fa103ad2..337459ce2da 100644
--- a/includes/templates/class-amp-post-template.php
+++ b/includes/templates/class-amp-post-template.php
@@ -315,6 +315,21 @@ private function build_post_commments_data() {
 	 * Build post content.
 	 */
 	private function build_post_content() {
+    $amp = new \Lullabot\AMP\AMP();
+
+    $content = apply_filters('the_content', $this->post->post_content);
+
+    $options = array(
+      'scope' => 'body',
+      'add_stats_html_comment' => false
+    );
+    $amp->loadHtml($content, $options);
+
+    $this->add_data_by_key('post_amp_content', $amp->convertToAmpHtml());
+    $this->merge_data_for_key('amp_component_scripts', $amp->getComponentJs());
+    $this->add_data_by_key('post_amp_debug', $amp->warningsHumanHtml());
+    return;
+
 		$amp_content = new AMP_Content(
 			$this->post->post_content,
 			amp_get_content_embed_handlers( $this->post ),
diff --git a/phpcs.xml b/phpcs.xml
index ef3a5c5b010..87fa0be5872 100644
--- a/phpcs.xml
+++ b/phpcs.xml
@@ -42,7 +42,6 @@
 	<arg name="extensions" value="php"/>
 	<file>.</file>
 
-	<exclude-pattern>*/dev-lib/*</exclude-pattern>
 	<exclude-pattern>*/node_modules/*</exclude-pattern>
 	<exclude-pattern>*/vendor/*</exclude-pattern>
 	<exclude-pattern>includes/lib/*</exclude-pattern>
diff --git a/phpunit.xml b/phpunit.xml
index a1b4d099ded..eee736f3ee1 100644
--- a/phpunit.xml
+++ b/phpunit.xml
@@ -1,5 +1,5 @@
 <phpunit
-	bootstrap="dev-lib/phpunit-plugin-bootstrap.php"
+	bootstrap="vendor/xwp/wp-dev-lib/phpunit-plugin-bootstrap.php"
 	backupGlobals="false"
 	colors="true"
 	convertErrorsToExceptions="true"
@@ -21,7 +21,6 @@
 		<whitelist processUncoveredFilesFromWhitelist="false">
 			<directory suffix=".php">./</directory>
 			<exclude>
-				<directory suffix=".php">dev-lib</directory>
 				<directory suffix=".php">svn</directory>
 				<directory suffix=".php">node_modules</directory>
 				<directory suffix=".php">tests</directory>
diff --git a/templates/single.php b/templates/single.php
index 6a6c883476d..4887d0627fd 100644
--- a/templates/single.php
+++ b/templates/single.php
@@ -26,7 +26,12 @@
 
 	<div class="amp-wp-article-content">
 		<?php echo $this->get( 'post_amp_content' ); // WPCS: XSS ok. Handled in AMP_Content::transform(). ?>
-	</div>
+    </div>
+    <div class="debug">
+        <pre>
+            <?php echo $this->get( 'post_amp_debug' ); ?>
+        </pre>
+    </div>
 
 	<footer class="amp-wp-article-footer">
 		<?php $this->load_parts( apply_filters( 'amp_post_article_footer_meta', array( 'meta-taxonomy', 'meta-comments-link' ) ) ); ?>