Fact Checking with Insufficient Evidence Pepa Atanasova author Jakob Grue Simonsen author Christina Lioma author Isabelle Augenstein author 2022 text journal article Transactions of the Association for Computational Linguistics continuing MIT Press Cambridge, MA periodical academic journal atanasova-etal-2022-fact 10.1162/tacl_a_00486 https://aclanthology.org/2022.tacl-1.43/ 2022 10 746 763