Speculation and Negation: Rules, Rankers, and the Role of Syntax Erik Velldal author Lilja Øvrelid author Jonathon Read author Stephan Oepen author 2012-06 text journal article Computational Linguistics continuing MIT Press Cambridge, MA periodical academic journal velldal-etal-2012-speculation 10.1162/COLI_a_00126 https://aclanthology.org/J12-2005/ 2012-06 38 2 369 410