METGEN: A Module-Based Entailment Tree Generation Framework for Answer Explanation Ruixin Hong author Hongming Zhang author Xintong Yu author Changshui Zhang author 2022-07 text Findings of the Association for Computational Linguistics: NAACL 2022 Marine Carpuat editor Marie-Catherine de Marneffe editor Ivan Vladimir Meza Ruiz editor Association for Computational Linguistics Seattle, United States conference publication hong-etal-2022-metgen 10.18653/v1/2022.findings-naacl.145 https://aclanthology.org/2022.findings-naacl.145/ 2022-07 1887 1905