Overview of the Entity Relations (REL) supporting task of BioNLP Shared Task 2011 Sampo Pyysalo author Tomoko Ohta author Jun’ichi Tsujii author 2011-06 text Proceedings of BioNLP Shared Task 2011 Workshop Jun’ichi Tsujii editor Jin-Dong Kim editor Sampo Pyysalo editor Association for Computational Linguistics Portland, Oregon, USA conference publication pyysalo-etal-2011-overview-entity https://aclanthology.org/W11-1812/ 2011-06 83 88