Building a Diverse Document Leads Corpus Annotated with Semantic Relations Masatsugu Hangyo author Daisuke Kawahara author Sadao Kurohashi author 2012-11 text Proceedings of the 26th Pacific Asia Conference on Language, Information, and Computation Ruli Manurung editor Francis Bond editor Faculty of Computer Science, Universitas Indonesia Bali, Indonesia conference publication hangyo-etal-2012-building https://aclanthology.org/Y12-1058/ 2012-11 535 544