@inproceedings{pyysalo-etal-2009-static,
    title = "Static Relations: a Piece in the Biomedical Information Extraction Puzzle",
    author = "Pyysalo, Sampo  and
      Ohta, Tomoko  and
      Kim, Jin-Dong  and
      Tsujii, Jun{'}ichi",
    editor = "Cohen, K. Bretonnel  and
      Demner-Fushman, Dina  and
      Ananiadou, Sophia  and
      Pestian, John  and
      Tsujii, Jun{'}ichi  and
      Webber, Bonnie",
    booktitle = "Proceedings of the {B}io{NLP} 2009 Workshop",
    month = jun,
    year = "2009",
    address = "Boulder, Colorado",
    publisher = "Association for Computational Linguistics",
    url = "https://aclanthology.org/W09-1301/",
    pages = "1--9"
}