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diff --git a/nbs/banchmark/covid_data/temp/sample9981.txt b/nbs/benchmark/covid_data/temp/sample9981.txt
similarity index 100%
rename from nbs/banchmark/covid_data/temp/sample9981.txt
rename to nbs/benchmark/covid_data/temp/sample9981.txt
diff --git a/nbs/banchmark/covid_data/temp/sample9982.txt b/nbs/benchmark/covid_data/temp/sample9982.txt
similarity index 100%
rename from nbs/banchmark/covid_data/temp/sample9982.txt
rename to nbs/benchmark/covid_data/temp/sample9982.txt
diff --git a/nbs/banchmark/covid_data/temp/sample9983.txt b/nbs/benchmark/covid_data/temp/sample9983.txt
similarity index 100%
rename from nbs/banchmark/covid_data/temp/sample9983.txt
rename to nbs/benchmark/covid_data/temp/sample9983.txt
diff --git a/nbs/banchmark/covid_data/temp/sample9984.txt b/nbs/benchmark/covid_data/temp/sample9984.txt
similarity index 100%
rename from nbs/banchmark/covid_data/temp/sample9984.txt
rename to nbs/benchmark/covid_data/temp/sample9984.txt
diff --git a/nbs/banchmark/covid_data/temp/sample9985.txt b/nbs/benchmark/covid_data/temp/sample9985.txt
similarity index 100%
rename from nbs/banchmark/covid_data/temp/sample9985.txt
rename to nbs/benchmark/covid_data/temp/sample9985.txt
diff --git a/nbs/banchmark/covid_data/temp/sample9986.txt b/nbs/benchmark/covid_data/temp/sample9986.txt
similarity index 100%
rename from nbs/banchmark/covid_data/temp/sample9986.txt
rename to nbs/benchmark/covid_data/temp/sample9986.txt
diff --git a/nbs/banchmark/covid_data/temp/sample9987.txt b/nbs/benchmark/covid_data/temp/sample9987.txt
similarity index 100%
rename from nbs/banchmark/covid_data/temp/sample9987.txt
rename to nbs/benchmark/covid_data/temp/sample9987.txt
diff --git a/nbs/banchmark/covid_data/temp/sample9988.txt b/nbs/benchmark/covid_data/temp/sample9988.txt
similarity index 100%
rename from nbs/banchmark/covid_data/temp/sample9988.txt
rename to nbs/benchmark/covid_data/temp/sample9988.txt
diff --git a/nbs/banchmark/covid_data/temp/sample9989.txt b/nbs/benchmark/covid_data/temp/sample9989.txt
similarity index 100%
rename from nbs/banchmark/covid_data/temp/sample9989.txt
rename to nbs/benchmark/covid_data/temp/sample9989.txt
diff --git a/nbs/banchmark/covid_data/temp/sample999.txt b/nbs/benchmark/covid_data/temp/sample999.txt
similarity index 100%
rename from nbs/banchmark/covid_data/temp/sample999.txt
rename to nbs/benchmark/covid_data/temp/sample999.txt
diff --git a/nbs/banchmark/covid_data/temp/sample9990.txt b/nbs/benchmark/covid_data/temp/sample9990.txt
similarity index 100%
rename from nbs/banchmark/covid_data/temp/sample9990.txt
rename to nbs/benchmark/covid_data/temp/sample9990.txt
diff --git a/nbs/banchmark/covid_data/temp/sample9991.txt b/nbs/benchmark/covid_data/temp/sample9991.txt
similarity index 100%
rename from nbs/banchmark/covid_data/temp/sample9991.txt
rename to nbs/benchmark/covid_data/temp/sample9991.txt
diff --git a/nbs/banchmark/covid_data/temp/sample9992.txt b/nbs/benchmark/covid_data/temp/sample9992.txt
similarity index 100%
rename from nbs/banchmark/covid_data/temp/sample9992.txt
rename to nbs/benchmark/covid_data/temp/sample9992.txt
diff --git a/nbs/banchmark/covid_data/temp/sample9993.txt b/nbs/benchmark/covid_data/temp/sample9993.txt
similarity index 100%
rename from nbs/banchmark/covid_data/temp/sample9993.txt
rename to nbs/benchmark/covid_data/temp/sample9993.txt
diff --git a/nbs/banchmark/covid_data/temp/sample9994.txt b/nbs/benchmark/covid_data/temp/sample9994.txt
similarity index 100%
rename from nbs/banchmark/covid_data/temp/sample9994.txt
rename to nbs/benchmark/covid_data/temp/sample9994.txt
diff --git a/nbs/banchmark/covid_data/temp/sample9995.txt b/nbs/benchmark/covid_data/temp/sample9995.txt
similarity index 100%
rename from nbs/banchmark/covid_data/temp/sample9995.txt
rename to nbs/benchmark/covid_data/temp/sample9995.txt
diff --git a/nbs/banchmark/covid_data/temp/sample9996.txt b/nbs/benchmark/covid_data/temp/sample9996.txt
similarity index 100%
rename from nbs/banchmark/covid_data/temp/sample9996.txt
rename to nbs/benchmark/covid_data/temp/sample9996.txt
diff --git a/nbs/banchmark/covid_data/temp/sample9997.txt b/nbs/benchmark/covid_data/temp/sample9997.txt
similarity index 100%
rename from nbs/banchmark/covid_data/temp/sample9997.txt
rename to nbs/benchmark/covid_data/temp/sample9997.txt
diff --git a/nbs/banchmark/covid_data/temp/sample9998.txt b/nbs/benchmark/covid_data/temp/sample9998.txt
similarity index 100%
rename from nbs/banchmark/covid_data/temp/sample9998.txt
rename to nbs/benchmark/covid_data/temp/sample9998.txt
diff --git a/nbs/banchmark/covid_data/temp/sample9999.txt b/nbs/benchmark/covid_data/temp/sample9999.txt
similarity index 100%
rename from nbs/banchmark/covid_data/temp/sample9999.txt
rename to nbs/benchmark/covid_data/temp/sample9999.txt
diff --git a/spannerlib/_modidx.py b/spannerlib/_modidx.py
index 3bb598c5..dd308de0 100644
--- a/spannerlib/_modidx.py
+++ b/spannerlib/_modidx.py
@@ -13,27 +13,27 @@
                                                                                                                                                                           'spannerlib/adding_inference_rules_to_term_graph.py'),
                                                                  'spannerlib.adding_inference_rules_to_term_graph.AddRulesToTermGraph.run_pass': ( 'adding_inference_rules_to_term_graph.html#addrulestotermgraph.run_pass',
                                                                                                                                                    'spannerlib/adding_inference_rules_to_term_graph.py')},
-            'spannerlib.banchmark.covid': { 'spannerlib.banchmark.covid.AggDocumentTags': ( 'banchmark/covid.html#aggdocumenttags',
+            'spannerlib.banchmark.covid': { 'spannerlib.banchmark.covid.AggDocumentTags': ( 'benchmark/covid.html#aggdocumenttags',
                                                                                             'spannerlib/banchmark/covid.py'),
-                                            'spannerlib.banchmark.covid.LemmaFromList': ( 'banchmark/covid.html#lemmafromlist',
+                                            'spannerlib.banchmark.covid.LemmaFromList': ( 'benchmark/covid.html#lemmafromlist',
                                                                                           'spannerlib/banchmark/covid.py'),
-                                            'spannerlib.banchmark.covid.LemmaFromList.__call__': ( 'banchmark/covid.html#lemmafromlist.__call__',
+                                            'spannerlib.banchmark.covid.LemmaFromList.__call__': ( 'benchmark/covid.html#lemmafromlist.__call__',
                                                                                                    'spannerlib/banchmark/covid.py'),
-                                            'spannerlib.banchmark.covid.LemmaFromList.__init__': ( 'banchmark/covid.html#lemmafromlist.__init__',
+                                            'spannerlib.banchmark.covid.LemmaFromList.__init__': ( 'benchmark/covid.html#lemmafromlist.__init__',
                                                                                                    'spannerlib/banchmark/covid.py'),
-                                            'spannerlib.banchmark.covid.PosFromList': ( 'banchmark/covid.html#posfromlist',
+                                            'spannerlib.banchmark.covid.PosFromList': ( 'benchmark/covid.html#posfromlist',
                                                                                         'spannerlib/banchmark/covid.py'),
-                                            'spannerlib.banchmark.covid.PosFromList.__call__': ( 'banchmark/covid.html#posfromlist.__call__',
+                                            'spannerlib.banchmark.covid.PosFromList.__call__': ( 'benchmark/covid.html#posfromlist.__call__',
                                                                                                  'spannerlib/banchmark/covid.py'),
-                                            'spannerlib.banchmark.covid.PosFromList.__init__': ( 'banchmark/covid.html#posfromlist.__init__',
+                                            'spannerlib.banchmark.covid.PosFromList.__init__': ( 'benchmark/covid.html#posfromlist.__init__',
                                                                                                  'spannerlib/banchmark/covid.py'),
-                                            'spannerlib.banchmark.covid.agg_mention': ( 'banchmark/covid.html#agg_mention',
+                                            'spannerlib.banchmark.covid.agg_mention': ( 'benchmark/covid.html#agg_mention',
                                                                                         'spannerlib/banchmark/covid.py'),
-                                            'spannerlib.banchmark.covid.rewrite': ( 'banchmark/covid.html#rewrite',
+                                            'spannerlib.banchmark.covid.rewrite': ( 'benchmark/covid.html#rewrite',
                                                                                     'spannerlib/banchmark/covid.py'),
-                                            'spannerlib.banchmark.covid.rewrite_docs': ( 'banchmark/covid.html#rewrite_docs',
+                                            'spannerlib.banchmark.covid.rewrite_docs': ( 'benchmark/covid.html#rewrite_docs',
                                                                                          'spannerlib/banchmark/covid.py'),
-                                            'spannerlib.banchmark.covid.split_sentence': ( 'banchmark/covid.html#split_sentence',
+                                            'spannerlib.banchmark.covid.split_sentence': ( 'benchmark/covid.html#split_sentence',
                                                                                            'spannerlib/banchmark/covid.py')},
             'spannerlib.data_types': { 'spannerlib.data_types.AGGFunction': ( 'primitive_data_types.html#aggfunction',
                                                                               'spannerlib/data_types.py'),
diff --git a/spannerlib/banchmark/covid.py b/spannerlib/banchmark/covid.py
index b5ba7e2d..3d96e8ca 100644
--- a/spannerlib/banchmark/covid.py
+++ b/spannerlib/banchmark/covid.py
@@ -1,4 +1,4 @@
-# AUTOGENERATED! DO NOT EDIT! File to edit: ../../nbs/banchmark/001_covid.ipynb.
+# AUTOGENERATED! DO NOT EDIT! File to edit: ../../nbs/benchmark/001_covid.ipynb.
 
 # %% auto 0
 __all__ = ['VERSION', 'sess', 'nlp', 'slog_file', 'input_dir', 'data_dir', 'lemma_list', 'lemmatizer', 'pos_annotator',
@@ -7,7 +7,7 @@
            'section_delimeter_pattern', 'doc_tags', 'paths', 'classification', 'split_sentence', 'LemmaFromList',
            'PosFromList', 'rewrite', 'rewrite_docs', 'agg_mention', 'AggDocumentTags']
 
-# %% ../../nbs/banchmark/001_covid.ipynb 3
+# %% ../../nbs/benchmark/001_covid.ipynb 3
 # importing dependencies
 import re
 import csv
@@ -39,13 +39,13 @@
 nlp = spacy.load("en_core_web_sm")
 
 
-# %% ../../nbs/banchmark/001_covid.ipynb 5
+# %% ../../nbs/benchmark/001_covid.ipynb 5
 # configurations
 slog_file = Path('covid_data/covid_logic.pl')
 input_dir = Path('covid_data/sample_inputs')
 data_dir = Path('covid_data/rules_data')
 
-# %% ../../nbs/banchmark/001_covid.ipynb 6
+# %% ../../nbs/benchmark/001_covid.ipynb 6
 def split_sentence(text):
     """
     Splits a text into individual sentences. using spacy's sentence detection.
@@ -62,7 +62,7 @@ def split_sentence(text):
         yield Span(text,start,end)
         start = end + 1
 
-# %% ../../nbs/banchmark/001_covid.ipynb 7
+# %% ../../nbs/benchmark/001_covid.ipynb 7
 class LemmaFromList():
     def __init__(self,lemma_list):
         self.lemma_list = lemma_list
@@ -82,7 +82,7 @@ def __call__(self,text):
 lemma_list = (data_dir/'lemma_words.txt').read_text().split()
 lemmatizer = LemmaFromList(lemma_list)
 
-# %% ../../nbs/banchmark/001_covid.ipynb 8
+# %% ../../nbs/benchmark/001_covid.ipynb 8
 class PosFromList():
     def __init__(self,pos_list):
         self.pos_list = pos_list
@@ -96,7 +96,7 @@ def __call__(self,text):
 
 pos_annotator = PosFromList(["NOUN", "PROPN", "PRON", "ADJ"])
 
-# %% ../../nbs/banchmark/001_covid.ipynb 9
+# %% ../../nbs/benchmark/001_covid.ipynb 9
 if VERSION in ["SPANNERFLOW", "SPANNERFLOW_PYTHON_IE"]:
     sess.register('split_sentence',split_sentence,[Span],[Span])
     sess.register('pos',pos_annotator,[Span],[Span,str])
@@ -106,7 +106,7 @@ def __call__(self,text):
     sess.register('pos',pos_annotator,[str],[Span,str])
     sess.register('lemma',lemmatizer,[str],[Span,str])
 
-# %% ../../nbs/banchmark/001_covid.ipynb 10
+# %% ../../nbs/benchmark/001_covid.ipynb 10
 def rewrite(text,span_label_pairs):
     """rewrites a string given a dataframe with spans and the string to rewrite them to
     assumes that the spans belong to the text
@@ -133,7 +133,7 @@ def rewrite(text,span_label_pairs):
     return rewritten_text
 
 
-# %% ../../nbs/banchmark/001_covid.ipynb 11
+# %% ../../nbs/benchmark/001_covid.ipynb 11
 def rewrite_docs(docs,span_label,new_version):
     """Given a dataframe of documents of the form (path,doc,version) and a dataframe of spans to rewrite
     of the form (path,word,from_span,to_tag), rewrites the documents and returns a new dataframe of the form
@@ -149,7 +149,7 @@ def rewrite_docs(docs,span_label,new_version):
     return pd.DataFrame(new_tuples,columns=['P','D','V'])
     
 
-# %% ../../nbs/banchmark/001_covid.ipynb 12
+# %% ../../nbs/benchmark/001_covid.ipynb 12
 sess.import_rel("ConceptTagRules",data_dir/"concept_tags_rules.csv" , delim=",")
 sess.import_rel("TargetTagRules",data_dir/"target_rules.csv",delim=",")
 sess.import_rel("SectionTags",data_dir/"section_tags.csv",delim=",")
@@ -160,7 +160,7 @@ def rewrite_docs(docs,span_label,new_version):
 sess.import_rel("NextSentencePostprocessPatternRules",data_dir/'postprocess_pattern_next_sentence_rules.csv',delim=',')
 
 
-# %% ../../nbs/banchmark/001_covid.ipynb 13
+# %% ../../nbs/benchmark/001_covid.ipynb 13
 from glob import glob
 file_paths = [Path(p) for p in glob(str(input_dir/'*.txt'))]
 raw_docs = pd.DataFrame([
@@ -173,7 +173,7 @@ def rewrite_docs(docs,span_label,new_version):
     sess.import_rel('Docs',raw_docs)
 raw_docs
 
-# %% ../../nbs/banchmark/001_covid.ipynb 15
+# %% ../../nbs/benchmark/001_covid.ipynb 15
 lemma_tags = sess.export('?Lemmas(P,D,W,L)')
 lemma_docs = rewrite_docs(raw_docs,lemma_tags,'lemma')
 if VERSION in ["SPANNERFLOW", "SPANNERFLOW_PYTHON_IE"]:
@@ -182,7 +182,7 @@ def rewrite_docs(docs,span_label,new_version):
     sess.import_rel('Docs',lemma_docs)
 
 
-# %% ../../nbs/banchmark/001_covid.ipynb 17
+# %% ../../nbs/benchmark/001_covid.ipynb 17
 lemma_concept_matches = sess.export('?LemmaConceptMatches(Path,Doc,Span,Label)')
 lemma_concepts = rewrite_docs(lemma_docs,lemma_concept_matches,'lemma_concept')
 if VERSION in ["SPANNERFLOW", "SPANNERFLOW_PYTHON_IE"]:
@@ -190,7 +190,7 @@ def rewrite_docs(docs,span_label,new_version):
 else:
     sess.import_rel('Docs',lemma_concepts)
 
-# %% ../../nbs/banchmark/001_covid.ipynb 20
+# %% ../../nbs/benchmark/001_covid.ipynb 20
 pos_concept_matches = sess.export('?PosConceptMatches(P,D,W,L)')
 pos_concept_docs = rewrite_docs(lemma_concepts,pos_concept_matches,'pos_concept')
 if VERSION in ["SPANNERFLOW", "SPANNERFLOW_PYTHON_IE"]:
@@ -198,7 +198,7 @@ def rewrite_docs(docs,span_label,new_version):
 else:
     sess.import_rel('Docs',pos_concept_docs)
 
-# %% ../../nbs/banchmark/001_covid.ipynb 22
+# %% ../../nbs/benchmark/001_covid.ipynb 22
 target_matches = sess.export('?TargetMatches(P,D,W,L)')
 target_rule_docs = rewrite_docs(pos_concept_docs,target_matches,'target_concept')
 if VERSION in ["SPANNERFLOW", "SPANNERFLOW_PYTHON_IE"]:
@@ -206,16 +206,16 @@ def rewrite_docs(docs,span_label,new_version):
 else:
     sess.import_rel('Docs',target_rule_docs)
 
-# %% ../../nbs/banchmark/001_covid.ipynb 23
+# %% ../../nbs/benchmark/001_covid.ipynb 23
 section_tags = pd.read_csv(data_dir/'section_tags.csv',names=['literal','tag'])
 
-# %% ../../nbs/banchmark/001_covid.ipynb 24
+# %% ../../nbs/benchmark/001_covid.ipynb 24
 # we will programatically build a regex that matches all the section patterns
 section_delimeter_pattern = section_tags['literal'].str.cat(sep='|')
 sess.import_var('section_delimeter_pattern',section_delimeter_pattern)
 section_delimeter_pattern
 
-# %% ../../nbs/banchmark/001_covid.ipynb 33
+# %% ../../nbs/benchmark/001_covid.ipynb 33
 def agg_mention(group):
     """
     aggregates attribute groups of covid spans
@@ -251,10 +251,10 @@ def AggDocumentTags(group):
 sess.register_agg('agg_mention',agg_mention,[str],[str])
 sess.register_agg('agg_doc_tags',AggDocumentTags,[str],[str])
 
-# %% ../../nbs/banchmark/001_covid.ipynb 35
+# %% ../../nbs/benchmark/001_covid.ipynb 35
 doc_tags = sess.export('?DocumentTags(P,T)')
 
-# %% ../../nbs/banchmark/001_covid.ipynb 36
+# %% ../../nbs/benchmark/001_covid.ipynb 36
 paths = pd.DataFrame([p.name for p in file_paths],columns=['P'])
 classification = paths.merge(doc_tags,on='P',how='outer')
 classification['T']=classification['T'].fillna('UNK')