@InProceedings{shen-lapata:2007:EMNLP-CoNLL2007,
  author    = {Shen, Dan  and  Lapata, Mirella},
  title     = {Using Semantic Roles to Improve Question Answering},
  booktitle = {Proceedings of the 2007 Joint Conference on Empirical Methods in Natural Language Processing and Computational Natural Language Learning (EMNLP-CoNLL)},
  pages     = {12--21},
  url       = {http://www.aclweb.org/anthology/D/D07/D07-1002}
}