Question: In which county is the city where Gateway is based?

full_context: Document 1: Marlton, Camden: Marlton is a neighborhood in Camden, New Jersey. According to the 2000 U.S. Census, the neighborhood has a population of 5,049.
Document 2: Rosedale, Camden: Rosedale is a neighborhood in Camden, New Jersey. It is located on the border with Pennsauken Township and has a population of 1,807.
Document 3: The Gateway (New Brunswick, New Jersey): The Gateway is a mixed-use tower in New Brunswick, New Jersey adjacent to the Northeast Corridor Line New Brunswick rail station. It was proposed in February 2005 by DEVCO as part of the Easton-Somerset redevelopment area. Several businesses were relocated from the site during 2008 and 2009. The project was completed in September 2012, at a cost of $150 million.
Document 4: Stedman, North Carolina: Stedman is a town in Cumberland County, North Carolina, United States. The population was 1,028 at the 2010 census. It is named for Civil War Major Charles Manly Stedman.
Document 5: Cumberland, North Carolina: Cumberland is an unincorporated community in Cumberland County, North Carolina, United States. The community is located between Fayetteville to the north and Hope Mills on North Carolina Highway 59; parts of the community have been annexed by the two cities. Cumberland has a post office with ZIP code 28331.
Document 6: Whitman Park, Camden: Whitman Park is a neighborhood in Camden, New Jersey. Located north of Woodlynne, Whitman Park has a population of 6,574.
Document 7: Camden, Michigan: Camden is a village in Camden Township, Hillsdale County in the U.S. state of Michigan. The population was 512 at the 2010 census.
Document 8: Canal Crossing, Jersey City: Canal Crossing is a New Urbanism project on the eastern side of Jersey City, New Jersey between Jackson Hill in Greenville/Bergen-Lafayette and Liberty State Park. The approximately 111 acre area, previously designated for industrial and distribution uses has been re-zoned for transit-oriented residential and commercial use and the construction of a neighborhood characterized as a sustainable community. The name is inspired by the Morris Canal, which once traversed the district in a general north and south alignment. The brownfield site must first undergo remediation of toxic waste, much of it left by PPG Industries The redevelopment plans call for 7,000 housing units, mainly "mid-rise" buildings (with heights limited to five stories), and a greenway along the former canal, directly south of the 17-acre Berry Lane Park.
Document 9: Camden, North Carolina: Camden is an unincorporated community and census-designated place (CDP) in Camden County, North Carolina, United States. It is the county seat of Camden County, a consolidated city-county. As of the 2010 census, the Camden CDP had a population of 599.
Document 10: Camden Township, Schuyler County, Illinois: Camden Township is located in Schuyler County, Illinois. As of the 2010 census, its population was 229 and it contained 126 housing units.
Document 11: Randleman, North Carolina: Randleman is a city in Randolph County, North Carolina, United States. The population was 4,113 at the 2010 census. It is the home of NASCAR's Petty family, the Victory Junction Gang Camp and was the location of the Richard Petty Museum from 2003-2014.
Document 12: Gateway, Camden: Gateway is a neighborhood located in the central part of Camden, New Jersey. According to the 2000 U.S. Census, Gateway has a population of 2,439.
Document 13: Mecklenburg County, North Carolina: Mecklenburg County is a county located on the border in the southwestern part of the state of North Carolina, in the United States. As of the 2010 census, the population was 919,628. It increased to 1,034,070 as of the 2015 estimate, making it the most populous county in North Carolina and the first county in the Carolinas to surpass 1 million in population. Its county seat and largest city is Charlotte.
Document 14: Beideman, Camden: Beideman is a neighborhood name in the East Camden section of the City of Camden, New Jersey, USA. According to the 2000 U.S. Census, Beideman has a population of 5,677. The neighborhood name Beideman originates from a prominent family that lived there, with several notable members including Benjamin C. Beideman and Horace B. Beideman. The name Beideman has been frequently misspelled as "Biedman" or "Biedeman". The East Camden neighborhoods of Beideman and Pavonia are also considered part of the neighborhood of Cramer Hill.
Document 15: Camden, Maine: Camden is a town in Knox County, Maine, United States. The population was 4,850 at the 2010 census. The population of the town more than triples during the summer months, due to tourists and summer residents. Camden is a famous summer colony in the Mid-Coast region of Maine. Similar to Bar Harbor, Nantucket and North Haven, Camden is well known for its summer community of wealthy Northeasterners, mostly from Boston, New York and Philadelphia.
ground_truth: Camden County
sub_queries: Gateway >> located in the administrative territorial entity Answer: Camden
Camden >> located in the administrative territorial entity Answer: Camden County