Towards Conversation Entailment: An Empirical Investigation Chen Zhang author Joyce Chai author 2010-10 text Proceedings of the 2010 Conference on Empirical Methods in Natural Language Processing Hang Li editor Lluís Màrquez editor Association for Computational Linguistics Cambridge, MA conference publication zhang-chai-2010-towards https://aclanthology.org/D10-1074/ 2010-10 756 766