Sentence: A Fortress of Grey Ice is from the United States where Barack Obama is leader, African American's comprise one of the ethnic groups and similar to English speaking Great Britain, English is the language of the United States.

What data can be extracted from this sentence?
United States, ethnicGroup, African Americans; United States, language, English language; United States, leader, Barack Obama; English language, spokenIn, Great Britain; A Fortress of Grey Ice, country, United States