@inproceedings{mcdonald-greenbacker-2010-youve,
    title = "`If you{'}ve heard it, you can say it' - Towards an Account of Expressibility",
    author = "McDonald, David D.  and
      Greenbacker, Charlie",
    editor = "Kelleher, John  and
      Namee, Brian Mac  and
      Sluis, Ielka van der",
    booktitle = "Proceedings of the 6th International Natural Language Generation Conference",
    month = jul,
    year = "2010",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/fix-sig-urls/W10-4220/"
}