@inproceedings {4655,
	title = {Overview of the TREC 2007 Question Answering Track},
	booktitle = {Text Retrieval Conference (TREC)},
	year = {2007},
	url = {http://trec.nist.gov/pubs/trec16/papers/QA.OVERVIEW16.pdf},
	author = {Hoa Trang Dang and Diane Kelly and Jimmy Lin}
}
