The Importance of Syntactic Parsing and Inference in Semantic Role Labeling Vasin Punyakanok author Dan Roth author Wen-tau Yih author 2008 text journal article Computational Linguistics continuing periodical academic journal punyakanok-etal-2008-importance 10.1162/coli.2008.34.2.257 https://aclanthology.org/J08-2005/ 2008 34 2 257 287