@InProceedings{maccartney-EtAl:2006:HLT-NAACL06-Main,
  author    = {MacCartney, Bill  and  Grenager, Trond  and  de Marneffe, Marie-Catherine  and  Cer, Daniel  and  Manning, Christopher D.},
  title     = {Learning to recognize features of valid textual entailments},
  booktitle = {Proceedings of the Human Language Technology Conference of the NAACL, Main Conference},
  month     = {June},
  year      = {2006},
  address   = {New York City, USA},
  publisher = {Association for Computational Linguistics},
  pages     = {41--48},
  url       = {http://www.aclweb.org/anthology/N/N06/N06-1006}
}