Siege of Arai
{'<entity_0>': 'Sengoku period', '<entity_1>': 'Siege of Arai', '<entity_2>': 'Japan'}
[['Siege of Arai', 'country', 'Japan'], ['Siege of Arai', 'time period', 'Sengoku period'], ['Siege of Arai', 'location', 'Japan'], ['Siege of Arai', 'part of', 'Sengoku period']]
The <entity_1> (新井城の戦い) was among the first steps taken by Hōjō Sōun towards becoming one of the most powerful warlords of <entity_2>'s <entity_0>.
['siege']