tripleset: Arlington, Texas IS_PART_OF Tarrant County, Texas
tripleset: Tarrant County, Texas COUNTY_SEAT Fort Worth, Texas
tripleset: Tarrant County, Texas COUNTRY United States
annotations.source: webnlg webnlg webnlg
annotations.text: Arlington is located in Tarrant County,Texas whose county seat is Fort Worth in the United States. Arlington in the United States is part of Tarrant County in Texas where the county seat is Fort Worth. Arlington is part of Tarrant County, Texas, where the county seat is Fort Worth.