The leader of the United States is Paul Ryan. The leader of the United States is President Barack Obama. 205 Delaware Avenue is an address in the United States.
[['United States', 'LEADER_TITLE', 'President of the United States'], ['United States', 'LEADER_NAME', 'Paul Ryan'], ['250 Delaware Avenue', 'LOCATION', 'United States'], ['United States', 'LEADER_NAME', 'Barack Obama']]