Question: Takashi Nagase, was an interpreter of the Ministry of War of Japan, he was one of the officers in charge of the construction of the "Death Railway" which ran between Thailand and Burma, and is known for the use of forced labour of Allied prisoners of war, a prisoner of war, enemy prisoner of war (EPW) or "missing-captured, is a person, whether combatant or non-combatant, who is held in custody by a belligerent power during or immediately after an armed conflict, the arliest recorded usage of the phrase "prisoner of war", dates to what year?
{'answer': '1660', 'supporting_facts': [['Takashi Nagase', 3], ['Prisoner of war', 1]]}