@inproceedings{pham-etal-2013-using,
    title = "Using Shallow Semantic Parsing and Relation Extraction for Finding Contradiction in Text",
    author = "Pham, Minh Quang Nhat  and
      Nguyen, Minh Le  and
      Shimazu, Akira",
    editor = "Mitkov, Ruslan  and
      Park, Jong C.",
    booktitle = "Proceedings of the Sixth International Joint Conference on Natural Language Processing",
    month = oct,
    year = "2013",
    address = "Nagoya, Japan",
    publisher = "Asian Federation of Natural Language Processing",
    url = "https://preview.aclanthology.org/fix-sig-urls/I13-1138/",
    pages = "1017--1021"
}