United_States | capital | Washington,_D.C. Auburn,_Washington | isPartOf | Pierce_County,_Washington Pierce_County,_Washington | largestCity | Tacoma,_Washington King_County,_Washington | country | United_States Auburn,_Washington | isPartOf | King_County,_Washington
The capital of the United States is Washington DC. and King County is part of it. Auburn is part of Pierce County, Washington and King County but Tacoma is the largest city.