Forst: Question Answering System for Second-stage Examinations at NTCIR-13 QA Lab-3 Task. - Kotaro Sakamoto; Madoka Ishioroshi; Yuta Fukuhara; Akihiro Iizuka; Hideyuki Shibuki; Tatsunori Mori; Noriko Kando (NTCIR, 2017)