@inproceedings{ritter-etal-2008-contradiction,
    title = "It`s a Contradiction {--} no, it`s not: {A} Case Study using Functional Relations",
    author = "Ritter, Alan  and
      Soderland, Stephen  and
      Downey, Doug  and
      Etzioni, Oren",
    editor = "Lapata, Mirella  and
      Ng, Hwee Tou",
    booktitle = "Proceedings of the 2008 Conference on Empirical Methods in Natural Language Processing",
    month = oct,
    year = "2008",
    address = "Honolulu, Hawaii",
    publisher = "Association for Computational Linguistics",
    url = "https://aclanthology.org/D08-1002/",
    pages = "11--20"
}