Extracting Relations Within and Across Sentences Kumutha Swampillai author Mark Stevenson author 2011-09 text Proceedings of the International Conference Recent Advances in Natural Language Processing 2011 Ruslan Mitkov editor Galia Angelova editor Association for Computational Linguistics Hissar, Bulgaria conference publication swampillai-stevenson-2011-extracting https://aclanthology.org/R11-1004/ 2011-09 25 32