Classifying What-Type Questions by Head Noun Tagging Fangtao Li author Xian Zhang author Jinhui Yuan author Xiaoyan Zhu author 2008-08 text Proceedings of the 22nd International Conference on Computational Linguistics (Coling 2008) Donia Scott editor Hans Uszkoreit editor Coling 2008 Organizing Committee Manchester, UK conference publication li-etal-2008-classifying https://aclanthology.org/C08-1061/ 2008-08 481 488