@inproceedings{prager-etal-2001-answering,
    title = "Answering What-Is Questions by Virtual Annotation",
    author = "Prager, John  and
      Radev, Dragomir  and
      Czuba, Krzysztof",
    booktitle = "Proceedings of the First International Conference on Human Language Technology Research",
    year = "2001",
    url = "https://preview.aclanthology.org/jlcl-multiple-ingestion/H01-1006/"
}