United_States | leader | Barack_Obama United_States | capital | Washington,_D.C. Akron,_Ohio | country | United_States United_States | ethnicGroup | African_Americans Akron,_Ohio | isPartOf | Summit_County,_Ohio
Washington DC is the capital of the United States, which is led by Barack Obama and where African Americans are one of the country's ethnic groups. The US is home to Akron, which is in Summit County, Ohio.