Sentence: ALV X-1 originated in the United States where one of the ethnic groups in the United States is African Americans and the capital is Washington D.C.; the people of the United States are called Americans and the leader has the title President of the United States.

What data can be extracted from this sentence?
United States, leaderTitle, President of the United States; ALV X-1, countryOrigin, United States; United States, ethnicGroup, African Americans; United States, demonym, Americans; United States, capital, Washington, D.C.