United States
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Barack Obama
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United States
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African Americans
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United States
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Washington
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United States
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English
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Barack Obama
leaderName
United States
African Americans
ethnicGroup
United States
Washington
capital
United States
English
language
United States
Washington DC is the capital of the United States , where English is the language and where the dish bacon explosion originated . Barack Obama is leader of the US , where African Americans are an ethnic group .