Question: What is the administrative territorial entity in the city of Robinson in the state where Knoxville Raceway is located?

full_context: Document 1: Bristol Motor Speedway: Bristol Motor Speedway, formerly known as Bristol International Raceway and Bristol Raceway, is a NASCAR short track venue located in Bristol, Tennessee. Constructed in 1960, it held its first NASCAR race on July 30, 1961. Despite its short length, Bristol is among the most popular tracks on the NASCAR schedule because of its distinct features, which include extraordinarily steep banking, an all concrete surface, two pit roads, and stadium - like seating. It has also been named one of the loudest NASCAR tracks.
Document 2: Knoxville Raceway: Knoxville Raceway is a semi-banked 1/2 mile dirt oval raceway (zook clay) located at the Marion County Fairgrounds in Knoxville, Iowa, United States. Races at the "Sprint Car Capital of the World" are held on Saturday nights from April through September each year. Some special events may start as early as Wednesday and build up to Saturday. Regular events include 305 cubic inch, 360 cubic inch and 410 cubic inch sprint car racing. Each August, the Raceway holds the paramount sprint car event in the United States, the Knoxville Nationals. The track is governed by the 24-member fair board elected by Marion County residents.
Document 3: Roby and Northern Railroad: The Roby and Northern Railroad was constructed in 1915 to connect the agricultural community of Roby, Texas with a connection to the Missouri, Kansas and Texas Railway at North Roby, then known as Old Fisher, both located in Fisher County, Texas, a few miles north of Sweetwater. There was a need to move agricultural products, passengers, and livestock the four and one-half miles north to the Waco-Rotan branch of the MKT.
Document 4: Tucson, Arizona: Tracks include Tucson Raceway Park and Rillito Downs. Tucson Raceway Park hosts NASCAR-sanctioned auto racing events and is one of only two asphalt short tracks in Arizona. Rillito Downs is an in-town destination on weekends in January and February each year. This historic track held the first organized quarter horse races in the world, and they are still racing there. The racetrack is threatened by development. The Moltacqua racetrack, was another historic horse racetrack located on what is now Sabino Canyon Road and Vactor Ranch Trail, but it no longer exists.
Document 5: Cornwall Motor Speedway: The Cornwall Motor Speedway is a 1/4 mile dirt track near the community of Cornwall, Ontario, Canada. It is located northwest of the city on Cornwall Centre Road. The track opened in 1970 and runs weekly racing on Sunday evenings.
Document 6: Beaver Dam Raceway: Beaver Dam Raceway is a one-third mile banked clay oval track located in Beaver Dam, Wisconsin, U.S.A.. The track holds weekly races over the Northern American summer months. It hosts an annual World of Outlaws sprint car races. The 2013 U.S. Dirt Legends Nationals event was held at the track.
Document 7: Robinson, Iowa: Robinson is an unincorporated community in Delaware County, Iowa, United States. It is located at the junction of County Highway D47 and 310th Street, five miles west of Ryan and three miles southeast of Monti, at 42.340037N, -91.578738W.
Document 8: Potomac Speedway: Potomac Speedway is a 3/8 mile clay oval raceway located in Budds Creek, Maryland, near Charlotte Hall. The raceway was first raced on in 1973. Races are typically held on Friday or Saturday nights. Regular events include Super Late Models, Limited Late Models, Street Stocks, and Hobby Stocks and 4 cylinders. The speedway also holds events for Modifieds, Crate Late Models, Strictly Stocks and Hornets. Potomac Speedway has a seating capacity of about 4,000 in the main grandstands and can hold an additional 1,000 in the pit area.
Document 9: Robinson, Kansas: Robinson is a city in Brown County, Kansas, United States. As of the 2010 census, the city population was 234.
Document 10: Riverside, Delaware: Riverside is an unincorporated community in New Castle County, Delaware, United States. Riverside is located at the intersection of U.S. Route 13 Business and Harvey Road southwest of Claymont.
Document 11: David J. Robinson: David J. Robinson is a former member of the Ohio House of Representatives. He was appointed to his position when the previous representative, E.J. Thomas, resigned; in turn, when Robinson lost the Republican primary election to Jim Hughes, he resigned so that Hughes could be appointed to his seat and run as an incumbent.
Document 12: Fort Dodge, Iowa: Fort Dodge is a city in and the county seat of Webster County, Iowa, United States, along the Des Moines River. The population was 25,206 in the 2010 census, an increase from 25,136 in the 2000 census. Fort Dodge is a major commercial center for North Central and Northwest Iowa. It is located on U.S. Routes 20 and 169.
Document 13: Exhibition game: Various auto racing organizations hold exhibition events; these events usually award no championship points to participants, but they do offer prize money to participants. The NASCAR Sprint Cup Series holds two exhibition events annually - the Sprint Unlimited, held at Daytona International Speedway at the start of the season, and the NASCAR Sprint All-Star Race, held at Charlotte Motor Speedway midway through the season. Both events carry a hefty purse of over USD $1,000,000. NASCAR has also held exhibition races at Suzuka Circuit and Twin Ring Motegi in Japan and Calder Park Thunderdome in Australia.
Document 14: John H. Robinson: John H. Robinson (born July 25, 1955) is an American politician and businessman, he was the 40th Mayor of Wausau, Wisconsin, and represented Wausau for four terms in the Wisconsin State Assembly.
Document 15: Delaware Route 48: Delaware Route 48 (DE 48) is a state highway in New Castle County, Delaware. The route runs from DE 41 in Hockessin east to U.S. Route 13 Business (US 13 Bus.) in downtown Wilmington. The route passes through suburban areas of Wilmington such as Lancaster Pike, intersecting DE 100 and DE 141. DE 48 continues into Wilmington as Lancaster Avenue and intersects DE 2, where it splits into the one-way pair of Lancaster Avenue eastbound and Second Street westbound. Upon reaching downtown Wilmington, the route intersects Interstate 95 (I-95)/US 202 and DE 4 before continuing to the eastern terminus.
ground_truth: Delaware County
sub_queries: In which state is Knoxville Raceway located? Answer: Iowa
Robinson, Iowa >> located in the administrative territorial entity Answer: Delaware County