[['United States', 'LEADER_NAME', 'Barack Obama'], ['United States', 'CAPITAL', 'Washington, D.C.'], ['1634: The Ram Rebellion', 'COUNTRY', 'United States'], ['United States', 'ETHNIC_GROUP', 'Asian Americans']]
The leader of the United States was Barack Obama. The capital of the US is Washington D.C. 1634 The Ram Rebellion comes from the United States and one of it's ethnic groups is Asian American.