Sameer Pradhan Wayne Ward Kadri Hacioglu James H. Martin Daniel Jurafsky Semantic Role Labeling Using Different Syntactic Views. 2005 conf/acl/2005 ACL http://acl.ldc.upenn.edu/P/P05/P05-1072.pdf db/conf/acl/acl2005.html#PradhanWHMJ05