IMTKU Question Answering System for World History Exams at NTCIR-13 QA Lab-3. - Min-Yuh Day; Chao-Yu Chen; Wan-Chu Huang; I-Hsuan Huang; Shi-Ya Zheng; Tz-Rung Chen; Min-Chun Kuo; Yue-Da Lin; Yi-Jing Lin (NTCIR, 2017)