@InProceedings{litkowski-hargraves:2007:SemEval-2007,
  author    = {Litkowski, Kenneth C.  and  Hargraves, Orin},
  title     = {SemEval-2007 Task 06: Word-Sense Disambiguation of Prepositions},
  booktitle = {Proceedings of the Fourth International Workshop on Semantic Evaluations (SemEval-2007)},
  month     = {June},
  year      = {2007},
  address   = {Prague, Czech Republic},
  publisher = {Association for Computational Linguistics},
  pages     = {24--29},
  url       = {http://www.aclweb.org/anthology/S/S07/S07-1005}
}