UNITN: Part-Of-Speech Counting in Relation Extraction Fabio Celli author 2010-07 text Proceedings of the 5th International Workshop on Semantic Evaluation Katrin Erk editor Carlo Strapparava editor Association for Computational Linguistics Uppsala, Sweden conference publication celli-2010-unitn https://aclanthology.org/S10-1043/ 2010-07 198 201