The Covert Helps Parse the Overt Xun Zhang author Weiwei Sun author Xiaojun Wan author 2017-08 text Proceedings of the 21st Conference on Computational Natural Language Learning (CoNLL 2017) Roger Levy editor Lucia Specia editor Association for Computational Linguistics Vancouver, Canada conference publication zhang-etal-2017-covert 10.18653/v1/K17-1035 https://aclanthology.org/K17-1035/ 2017-08 343 353