Absolute and Relative Properties in Geographic Referring Expressions Rodrigo de Oliveira author Somayajulu Sripada author Ehud Reiter author 2016-sep 5-8 text Proceedings of the 9th International Natural Language Generation conference Amy Isard editor Verena Rieser editor Dimitra Gkatzia editor Association for Computational Linguistics Edinburgh, UK conference publication de-oliveira-etal-2016-absolute 10.18653/v1/W16-6643 https://aclanthology.org/W16-6643/ 2016-sep 5-8 256 264