The Life and Death of Discourse Entities: Identifying Singleton Mentions Marta Recasens author Marie-Catherine de Marneffe author Christopher Potts author 2013-06 text Proceedings of the 2013 Conference of the North American Chapter of the Association for Computational Linguistics: Human Language Technologies Lucy Vanderwende editor Hal Daumé III editor Katrin Kirchhoff editor Association for Computational Linguistics Atlanta, Georgia conference publication recasens-etal-2013-life https://aclanthology.org/N13-1071/ 2013-06 627 633