Question: WBTJ serves which independent city in the U.S. state of Virginia?

full_context: Document 1: Carver Industrial Historic District: The Carver Industrial Historic District is a national historic district located at Carver, Richmond, Virginia. The district encompasses 13 contributing buildings located west of downtown Richmond. The industrial area developed between 1890 and 1930, along the tracks of the Richmond, Fredericksburg and Potomac Railroad. The buildings are in a variety of popular 19th century and early 20th century architectural styles including Queen Anne and Romanesque.
Document 2: WRBJ-FM: WRBJ-FM (97.7 FM) is an urban contemporary radio station in Jackson, Mississippi, but licensed to Brandon, Mississippi. The station is owned and operated by Roberts Broadcasting, former owners of The CW television affiliate WRBJ. Its studios are located at The Roberts Building along State Street in Jackson, just two blocks north of the Mississippi State Capitol building, and the transmitter tower is south of Brandon.
Document 3: VCU School of Business: The Virginia Commonwealth University School of Business is located in Richmond, Virginia, home to one of the twelve Federal Reserve Banks. Because the school is located in downtown Richmond, Virginia, many students are able to receive internships and other opportunities within the city. Richmond, Virginia includes the third highest concentration of U.S. Fortune 1000 headquarters and is ranked as one of the nation’s 10 best places for business and careers.
Document 4: Fort Riverview: Fort Riverview is a historic archaeological site located near Madison Heights, Amherst County, Virginia. It is an American Civil War redoubt built by the Confederate States Army about 1863 to protect Six Mile Bridge and the James River and Kanawha Canal system along the James River. Fort Riverview served as part of the outer defense system for Lynchburg, Virginia. The protection of this bridge was vital to the Confederacy as it carried supplies for General Robert E. Lee. Since Lynchburg served as a major supply, staging, and hospital center, Fort Riverview was strategically located to protect this critical center.
Document 5: Interstate 85 in Virginia: Interstate 85 (I-85) is a part of the Interstate Highway System that runs from Montgomery, Alabama to Petersburg, Virginia. In Virginia, the Interstate Highway runs 68.64 mi from the North Carolina state line near Bracey north to I-95 in Petersburg. I-85 passes through the eastern part of Southside Virginia, where it parallels U.S. Route 1 (US 1) from Petersburg, where the highway runs concurrently with US 460, to south of South Hill, where the highway intersects Southside's major east–west highway, US 58. The Interstate Highway is the primary connection between the Richmond–Petersburg metropolitan area and the Research Triangle and other major metropolitan areas of North Carolina. Like all mainline Interstate Highways, I-85 is a part of the National Highway System for its entire length in Virginia.
Document 6: WBTP: WBTP is an urban contemporary radio station that serves the Tampa Bay area that plays hip-hop, R&B, and soul music that aims towards the African American community. It is owned and operated by iHeartMedia. Its target audience is African Americans between the ages of 18-34, but its main competitor is WLLD, which has a very similar target audience as well. It was the home of former Russ Parr Morning Show co-host, Olivia Fox, who was host of the station's morning drive show from 2004 to mid-2006. Licensed to Clearwater, the station's studios are located in South Tampa and the transmitter site is in Gandy.
Document 7: Petersburg, West Virginia: Petersburg is a city in Grant County, West Virginia, USA. The population was 2,467 at the 2010 census. It is the county seat of Grant County.
Document 8: Petersburg, Virginia: Petersburg is an independent city in the U.S. state of Virginia. As of the 2010 census, the population was 32,420. The Bureau of Economic Analysis combines Petersburg (along with the city of Colonial Heights) with Dinwiddie County for statistical purposes. It is located on the Appomattox River and 21 mi south of the state capital of Richmond. The city's unique industrial past and its location as a transportation hub combined to create wealth for Virginia and the region.
Document 9: WVKB: WVKB (101.5 FM) is a radio station broadcasting an adult contemporary format. Licensed to Hodgenville, Kentucky, USA, the station is currently owned by Elizabethtown CBC, Inc. and features programming from ESPN Radio.
Document 10: Bermuda Hundred, Virginia: Bermuda Hundred was the first incorporated town in the English colony of Virginia. It was founded by Sir Thomas Dale in 1613, six years after Jamestown. At the southwestern edge of the confluence of the Appomattox and James Rivers opposite City Point, annexed to Hopewell, Virginia in 1923, Bermuda Hundred was a port town for many years. The terminology "Bermuda Hundred" also included a large area adjacent to the town. In the colonial era, "hundreds" were large developments of many acres, arising from the English term to define an area which would support one hundred homesteads. The port at the town of Bermuda Hundred was intended to serve other "hundreds" in addition to Bermuda Hundred.
Document 11: WDRB: WDRB, virtual channel 41 (UHF digital channel 49), is a Fox-affiliated television station licensed to Louisville, Kentucky, United States. The station is owned by Block Communications, as part of a duopoly with Salem, Indiana-licensed MyNetworkTV affiliate WMYO (channel 58); Block also operates Campbellsville-licensed CW affiliate WBKI-TV (channel 34) under a local marketing agreement with owner LM Communications, LLC. The three stations share studios located on West Muhammad Ali Boulevard (near Route 150) in downtown Louisville; WDRB and WMYO share transmitting facilities in rural northeastern Floyd County, Indiana (northeast of Floyds Knobs). On cable, WDRB is available on Charter Spectrum channel 9 and in high definition on digital channel 910.
Document 12: Virginia State University: Virginia State University (VSU), also known as Virginia State, is a historically black public land-grant university located north of the Appomattox River in Petersburg. Founded on  06, 1882 (1882--) , Virginia State developed as the United States's first fully state-supported four-year institution of higher learning for black Americans. The university is a member school of the Thurgood Marshall College Fund.
Document 13: WXJ85: WXJ85 is a 1000-Watt NOAA Weather/All Hazards radio station transmitting from Clarksburg, West Virginia with programming from the National Weather Service in Charleston, West Virginia. on an assigned frequency of 162.550 MHz. The station coverage area serves North Central West Virginia with weather and hazard information. Counties served by this weather radio station include Barbour, Doddridge, Harrison, Lewis, Marion, Preston, Randolph, Ritchie, Taylor, Tyler, Upshur, and Wetzel. This station will also relay any AMBER Alert activation within the state of West Virginia.
Document 14: WBTJ: WBTJ is a Mainstream Urban formatted broadcast radio station licensed to Richmond, Virginia, serving the Richmond/Petersburg area. WBTJ is owned and operated by iHeartCommunications, Inc.
Document 15: WTMJ (AM): WTMJ is an AM radio station in Milwaukee, Wisconsin broadcasting at 620 kHz and at 94.5 FM HD-2. The station was the flagship radio station of the Journal Broadcast Group until April 2015, when it came under its current ownership of the E.W. Scripps Company. JBG also owned the Milwaukee Journal Sentinel, WTMJ-TV and sister radio station WKTI, along with other media assets across the U.S. (WTMJ remains owned with WTMJ-TV and WKTI, with the "Journal Sentinel" owned by the Journal Media Group spin-off until their April 2016 merger with Gannett). WTMJ maintains studio facilities located on Capitol Drive in Milwaukee (this Art Deco facility is known as "Radio City" in tribute to the New York complex of the same name), and its transmitter is located in Union Grove.
ground_truth: Petersburg