() @InProceedings{pradhan-EtAl:2011:CoNLL-ST,
  author    = {Pradhan, Sameer  and  Ramshaw, Lance  and  Marcus, Mitchell  and  Palmer, Martha  and  Weischedel, Ralph  and  Xue, Nianwen},
  title     = {CoNLL-2011 Shared Task: Modeling Unrestricted Coreference in OntoNotes},
  booktitle = {Proceedings of the Fifteenth Conference on Computational Natural Language Learning: Shared Task},
  month     = {June},
  year      = {2011},
  address   = {Portland, Oregon, USA},
  publisher = {Association for Computational Linguistics},
  pages     = {1--27},
  url       = {http://www.aclweb.org/anthology/W11-1901}
}