@Book{*SEM2015:2015,
  editor    = {Martha Palmer},
  title     = {Proceedings of the Fourth Joint Conference on Lexical and Computational Semantics},
  month     = {June},
  year      = {2015},
  address   = {Denver, Colorado},
  publisher = {Association for Computational Linguistics},
  url       = {http://www.aclweb.org/anthology/S15-1}
}