Xun Wang author Masaaki Nishino author Tsutomu Hirao author Katsuhito Sudoh author Masaaki Nagata author 2016-12 text Yuji Matsumoto editor Rashmi Prasad editor The COLING 2016 Organizing Committee Osaka, Japan conference publication wang-etal-2016-exploring https://aclanthology.org/C16-1021/ 2016-12 213 223