SemEval-2020 Task 4: Commonsense Validation and Explanation Cunxiang Wang author Shuailong Liang author Yili Jin author Yilong Wang author Xiaodan Zhu author Yue Zhang author 2020-12 text Proceedings of the Fourteenth Workshop on Semantic Evaluation Aurelie Herbelot editor Xiaodan Zhu editor Alexis Palmer editor Nathan Schneider editor Jonathan May editor Ekaterina Shutova editor International Committee for Computational Linguistics Barcelona (online) conference publication wang-etal-2020-semeval 10.18653/v1/2020.semeval-1.39 https://aclanthology.org/2020.semeval-1.39/ 2020-12 307 321