Squibs: What Is a Paraphrase? Rahul Bhagat author Eduard Hovy author 2013-09 text journal article Computational Linguistics continuing MIT Press Cambridge, MA periodical academic journal bhagat-hovy-2013-squibs 10.1162/COLI_a_00166 https://aclanthology.org/J13-3001/ 2013-09 39 3 463 472