Proceedings of the Thirteenth Workshop on Graph-Based Methods for Natural Language Processing (TextGraphs-13) Dmitry Ustalov editor Swapna Somasundaran editor Peter Jansen editor Goran Glavaš editor Martin Riedl editor Mihai Surdeanu editor Michalis Vazirgiannis editor 2019-11 Association for Computational Linguistics Hong Kong text conference publication emnlp-2019-graph https://aclanthology.org/D19-5300/