Sentence: Auburn is part of Lee County, Alabama, U.S. Washington, D.C. is the capital of the U.S. and African Americans are an ethnic group.

What structured data could we extract from this sentence?
Auburn, Alabama, isPartOf, Lee County, Alabama; Lee County, Alabama, country, United States; Lee County, Alabama, state, Alabama; United States, ethnicGroup, African Americans; United States, capital, Washington, D.C.