Sentence: A Wizard of Mars originates from the United States, where English is spoken (as in Great Britain). The capital city of the United States is Washington D.C., and African Americans are one of the nation's ethnic groups.

What data can be extracted from this sentence?
United States, ethnicGroup, African Americans; English language, spokenIn, Great Britain; United States, capital, Washington, D.C.; United States, language, English language; A Wizard of Mars, country, United States