Contributors Tianyu Zhao and Kei Sawada I/O Format A special format has been adopted to construct inputs. An input prompt is formatted as a conversation between ユーザー and システム. Each input utterance consists of (1) its speaker ("ユーザー" or "システム"), (2) a colon (":"), (3) a whitespace (" "), and (4) utterance text (e.g. "世界で一番高い山は?"). The input prompt should be ended with "システム: " to acknowledge the mo