relative pronoun improvements

  * Resolves some issues identified in UniversalDependencies/UD_English-EWT#278

_build/utils/ud_morph.ini

@@ -93,10 +93,16 @@ lemma=/you/;#S:addressee=/.*,.*/	#2>#1	#1:morph+=Number=Plur
 xpos=/W.*/&lemma!=/that/	none	#1:morph+=PronType=Int
 # Standard relative
 xpos=/W.*/;func=/acl:relcl/	#2>#1;#1.*#2	#1:morph+=PronType=Rel
+# Coordinate standard relative
+xpos=/W.*/;func=/conj/;func=/acl:relcl/	#2>#1;#1.*#2;#3>#2	#1:morph+=PronType=Rel
 # Free relative
 xpos=/W.*/;func=/acl:relcl/	#1>#2	#1:morph+=PronType=Rel
 # Possessive 'whose' relative
 xpos=/WP\$/&func=/nmod:poss/;func=/acl:relcl/;func=/.*/	#2>#3>#1;#1.*#2	#1:morph+=PronType=Rel
+# Relative with "X of which"
+func=/acl.*/;xpos=/N.*|DT|J.*/;xpos=/WDT|WP/&func=/nmod|obl/	#1>#2>#3;#2.*#3	#3:morph+=PronType=Rel
+# Same but coordinated
+func=/conj/;xpos=/N.*|DT|J.*/;xpos=/WDT|WP/&func=/nmod|obl/;func=/acl.*/	#1>#2>#3;#2.*#3;#4>#1	#3:morph+=PronType=Rel
 
 # Subjunctive mood
 xpos=/VB/;xpos=/MD/	#1>#2	#1:storage=not_subjv
@@ -197,4 +203,5 @@ morph!=/.*PronType.*/&xpos=/PRP.?/&upos=/PRON/	none	#1:morph+=PronType=Prs
 morph!=/.*PronType.*/&func=/det/	none	#1:morph+=PronType=Art
 lemma=/each|one/;lemma=/(an)?other/&func=/fixed/	#1>#2	#1:morph+=PronType=Rcp
 
-func=/goeswith/	none	#1:morph=_
+func=/goeswith/	none	#1:morph=_
+