\input zb-basic \input zb-ioport \iteman{io-port 70495537} \itemau{Wu, Youzheng; Kashioka, Hideki} \itemti{An unsupervised model of exploiting the web to answer definitional questions} \itemso{Web Intelligence, 28-33 (2009).} \itemcc{} \itemut{} \itemli{doi:10.1109/WI-IAT.2009.12} \end