@InProceedings{pradhan-xue:2009:Tutorials,
  author    = {Pradhan, Sameer S.  and  Xue, Nianwen},
  title     = {OntoNotes: The 90\% Solution},
  booktitle = {Proceedings of Human Language Technologies: The 2009 Annual Conference of the North American Chapter of the Association for Computational Linguistics, Companion Volume: Tutorial Abstracts},
  month     = {May},
  year      = {2009},
  address   = {Boulder, Colorado},
  publisher = {Association for Computational Linguistics},
  pages     = {11--12},
  url       = {http://www.aclweb.org/anthology/N/N09/N09-4006}
}