Toward Diverse Precondition Generation Heeyoung Kwon author Nathanael Chambers author Niranjan Balasubramanian author 2021-08 text Proceedings of *SEM 2021: The Tenth Joint Conference on Lexical and Computational Semantics Lun-Wei Ku editor Vivi Nastase editor Ivan Vulić editor Association for Computational Linguistics Online conference publication kwon-etal-2021-toward 10.18653/v1/2021.starsem-1.15 https://aclanthology.org/2021.starsem-1.15/ 2021-08 160 172