White Americans are an ethnic group in the U.S. which is lead by the President. Joe Biden is a leader in that country. 250 Delaware Ave. is in the U.S.
[['United States', 'LEADER_TITLE', 'President of the United States'], ['United States', 'LEADER_NAME', 'Joe Biden'], ['250 Delaware Avenue', 'LOCATION', 'United States'], ['United States', 'ETHNIC_GROUP', 'White Americans']]