QED: A Framework and Dataset for Explanations in Question Answering Matthew Lamm author Jennimaria Palomaki author Chris Alberti author Daniel Andor author Eunsol Choi author Livio Baldini Soares author Michael Collins author 2021 text journal article Transactions of the Association for Computational Linguistics continuing MIT Press Cambridge, MA periodical academic journal lamm-etal-2021-qed 10.1162/tacl_a_00398 https://aclanthology.org/2021.tacl-1.48/ 2021 9 790 806