@inproceedings{ravichandran-etal-2003-automatic,
    title = "Automatic Derivation of Surface Text Patterns for a Maximum Entropy Based Question Answering System",
    author = "Ravichandran, Deepak  and
      Ittycheriah, Abraham  and
      Roukos, Salim",
    booktitle = "Companion Volume of the Proceedings of {HLT}-{NAACL} 2003 - Short Papers",
    year = "2003",
    url = "https://preview.aclanthology.org/ingest-emnlp/N03-2029/",
    pages = "85--87"
}