Koshamain's War
{'<entity_0>': "Koshamain's War", '<entity_1>': 'Wajin', '<entity_2>': 'Ainu people', '<entity_3>': '1457'}
[["Koshamain's War", 'start time', '1457'], ["Koshamain's War", 'participant', 'Ainu people'], ["Koshamain's War", 'participant', 'Wajin']]
<entity_0> (コシャマインの戦い, Koshamain no tatakai) was an armed struggle between the <entity_2> and <entity_1> that took place on the Oshima Peninsula of southern Hokkaidō, Japan, in <entity_3>.
['battle']