Paraphrasing for Style Wei Xu author Alan Ritter author Bill Dolan author Ralph Grishman author Colin Cherry author 2012-12 text Proceedings of COLING 2012 Martin Kay editor Christian Boitet editor The COLING 2012 Organizing Committee Mumbai, India conference publication xu-etal-2012-paraphrasing https://aclanthology.org/C12-1177/ 2012-12 2899 2914