@inproceedings{sun-etal-2020-predicate, title = "{A} {P}redicate-{F}unction-{A}rgument {A}nnotation of {N}atural {L}anguage for {O}pen-{D}omain {I}nformation e{X}pression", author = "Sun, Mingming and Hua, Wenyue and Liu, Zoey and Wang, Xin and Zheng, Kangjie and Li, Ping", editor = "Webber, Bonnie and Cohn, Trevor and He, Yulan and Liu, Yang", booktitle = "Proceedings of the 2020 Conference on Empirical Methods in Natural Language Processing (EMNLP)", month = nov, year = "2020", address = "Online", publisher = "Association for Computational Linguistics", url = "https://preview.aclanthology.org/fix-sig-urls/2020.emnlp-main.167/", doi = "10.18653/v1/2020.emnlp-main.167", pages = "2140--2150" }