Question: What is the seat of the county where Jonesborough is located?

full_context: Document 1: Townsend, Tennessee: Townsend is a city in Blount County, Tennessee, in the southeastern United States. The population was 244 at the 2000 census and 448 at the 2010 census. For thousands of years a site of Native American occupation by varying cultures, Townsend is one of three "gateways" to the Great Smoky Mountains National Park. It has several museums and attractions relating to the natural and human history of the Great Smokies.
Document 2: Johnson City, Tennessee: Johnson City is a city in Washington, Carter, and Sullivan counties in the U.S. state of Tennessee, with most of the city being in Washington County. As of the 2010 census, the population of Johnson City was 63,152, and by 2015 the estimated population was 66,027, making it the ninth - largest city in the state.
Document 3: Washington, Maine: Washington, officially the Town of Washington, is a town in Knox County, Maine. The population was 1,527 at the 2010 United States Census.
Document 4: Fayetteville National Cemetery: Fayetteville National Cemetery is a United States National Cemetery located on the southern side of the city of Fayetteville in Washington County, Arkansas. It encompasses nearly . As of 2013, around 8000 veterans were interred in this location, with approximately 200 new burials per year.
Document 5: Tennessee: Tennessee (i/tɛnᵻˈsiː/) (Cherokee: ᏔᎾᏏ, Tanasi) is a state located in the southeastern United States. Tennessee is the 36th largest and the 17th most populous of the 50 United States. Tennessee is bordered by Kentucky and Virginia to the north, North Carolina to the east, Georgia, Alabama, and Mississippi to the south, and Arkansas and Missouri to the west. The Appalachian Mountains dominate the eastern part of the state, and the Mississippi River forms the state's western border. Tennessee's capital and second largest city is Nashville, which has a population of 601,222. Memphis is the state's largest city, with a population of 653,450.
Document 6: Gray, Tennessee: Gray is a census-designated place (CDP) in Washington County, Tennessee, United States and a rural suburb of Johnson City. It is part of the Johnson City Metropolitan Statistical Area, which is a component of the Johnson City–Kingsport–Bristol, TN-VA Combined Statistical Area – commonly known as the "Tri-Cities" region. The population was 1,222 at the 2010 census.
Document 7: Fort Logan National Cemetery: Fort Logan National Cemetery is a United States National Cemetery in Denver, Colorado. Fort Logan was named after Union General John A. Logan, commander of US Volunteer forces during the American Civil War. It contains and has over 122,000 interments as of 2014. It was listed on the National Register of Historic Places in 2016.
Document 8: Nashville, Tennessee: The town of Nashville was founded by James Robertson, John Donelson, and a party of Overmountain Men in 1779, near the original Cumberland settlement of Fort Nashborough. It was named for Francis Nash, the American Revolutionary War hero. Nashville quickly grew because of its strategic location, accessibility as a port on the Cumberland River, a tributary of the Ohio River; and its later status as a major railroad center. By 1800, the city had 345 residents, including 136 African American slaves and 14 free blacks. In 1806, Nashville was incorporated as a city and became the county seat of Davidson County, Tennessee. In 1843, the city was named the permanent capital of the state of Tennessee.
Document 9: Oakfield Cemetery (Wantagh, New York): Oakfield Cemetery (also known as the Old Burying Ground) is a 70 X 438 tract of land located on Oakfield Avenue in Wantagh, New York, in the United States. It is covered with grass and lined with sporadically placed oak trees, and is surrounded by residential homes. Backyard fencing of homes also surrounds the land on both sides. The cemetery is now kept locked to keep vandals out. It was first deeded as a cemetery on March 18, 1851, and is noted as the second cemetery in the area to be used by Black residents of Wantagh, many of whom were descendants of freed Jackson family slaves. It is most noted as being the final resting place of four black Civil War soldiers. The Town of Hempstead takes care of this property. It is nicknamed by area residents as "Indian Burying Ground."
Document 10: Andrew Johnson National Cemetery: The Andrew Johnson National Cemetery is a United States National Cemetery on the grounds of the Andrew Johnson National Historic Site in Greeneville, Tennessee. Established in 1906, the cemetery was built around the resting place of Andrew Johnson, the 17th President of the United States, and holds more than two thousand graves.
Document 11: Jonesborough, Tennessee: Jonesborough (historically also Jonesboro) is a town in, and the county seat of, Washington County, Tennessee, in the southeastern United States. The population was 5,975 at the 2010 census. It is "Tennessee's oldest town".
Document 12: Conway Cemetery State Park: Conway Cemetery State Park is a Arkansas state park in Lafayette County, Arkansas in the United States. Located on the former cotton plantation grounds of James Sevier Conway, the cemetery serves as Conway's final resting place. No recreational or visitors' amenities are available at the historic site. The site became a state park in 1986 as part of Arkansas's sesquicentennial.
Document 13: Fort Scott National Cemetery: Fort Scott National Cemetery is a United States National Cemetery located in Fort Scott, in Bourbon County, Kansas. Administered by the United States Department of Veterans Affairs, it encompasses , and as of 2014, had more than 7,000 interments. It is one of three national cemeteries in Kansas (the other two being Fort Leavenworth and Leavenworth).
Document 14: Springfield National Cemetery: Springfield National Cemetery is a United States National Cemetery located in the city of Springfield, in Greene County, Missouri. Administered by the United States Department of Veterans Affairs, it encompasses , and as of the end of 2005, had 14,685 interments.
Document 15: Greeneville, Tennessee: Greeneville is a town in, and the county seat of Greene County, Tennessee, United States. The population as of the 2010 census was 15,062. The town was named in honor of Revolutionary War hero Nathanael Greene. It is the only town with this spelling in the United States, although there are numerous U.S. towns named "Greenville". The town was the capital of the short-lived State of Franklin in the 18th-century history of the Tennessee region.
ground_truth: Fayetteville
sub_queries: Jonesborough >> located in the administrative territorial entity Answer: Washington County
Washington County >> capital Answer: Fayetteville