@article{weischedel-black-1980-responding,
    title = "Responding Intelligently to Unparsable Inputs",
    author = "Weischedel, Ralph M.  and
      Black, John E.",
    journal = "American Journal of Computational Linguistics",
    volume = "6",
    number = "2",
    year = "1980",
    url = "https://preview.aclanthology.org/jlcl-multiple-ingestion/J80-2003/",
    pages = "97--109"
}