250 Delaware Avenue is located in the United States, where the English language is spoken, and one of the ethnic groups is Asians. The President of the United States is the most important leader, and Joe Biden is also a leader.
[['United States', 'LANGUAGE', 'English language'], ['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', 'Asian Americans']]