Evidence Sentence Extraction for Machine Reading Comprehension Hai Wang author Dian Yu author Kai Sun author Jianshu Chen author Dong Yu author David McAllester author Dan Roth author 2019-11 text Proceedings of the 23rd Conference on Computational Natural Language Learning (CoNLL) Mohit Bansal editor Aline Villavicencio editor Association for Computational Linguistics Hong Kong, China conference publication wang-etal-2019-evidence 10.18653/v1/K19-1065 https://aclanthology.org/K19-1065/ 2019-11 696 707