Swords: A Benchmark for Lexical Substitution with Improved Data Coverage and Quality Mina Lee author Chris Donahue author Robin Jia author Alexander Iyabor author Percy Liang author 2021-06 text Proceedings of the 2021 Conference of the North American Chapter of the Association for Computational Linguistics: Human Language Technologies Kristina Toutanova editor Anna Rumshisky editor Luke Zettlemoyer editor Dilek Hakkani-Tur editor Iz Beltagy editor Steven Bethard editor Ryan Cotterell editor Tanmoy Chakraborty editor Yichao Zhou editor Association for Computational Linguistics Online conference publication lee-etal-2021-swords 10.18653/v1/2021.naacl-main.345 https://aclanthology.org/2021.naacl-main.345/ 2021-06 4362 4379