Framing QA as Building and Ranking Intersentence Answer Justifications Peter Jansen author Rebecca Sharp author Mihai Surdeanu author Peter Clark author 2017-06 text journal article Computational Linguistics continuing MIT Press Cambridge, MA periodical academic journal jansen-etal-2017-framing 10.1162/COLI_a_00287 https://aclanthology.org/J17-2005/ 2017-06 43 2 407 449