@Book{SemEval:2015,
  editor    = {Preslav Nakov  and  Torsten Zesch  and  Daniel Cer  and  David Jurgens},
  title     = {Proceedings of the 9th International Workshop on Semantic Evaluation (SemEval 2015)},
  month     = {June},
  year      = {2015},
  address   = {Denver, Colorado},
  publisher = {Association for Computational Linguistics},
  url       = {http://www.aclweb.org/anthology/S15-2}
}