Question: What river flows through Tag Ridings's city of birth?

full_context: Document 1: Oklahoma City: In 1993, the city passed a massive redevelopment package known as the Metropolitan Area Projects (MAPS), intended to rebuild the city's core with civic projects to establish more activities and life to downtown. The city added a new baseball park; central library; renovations to the civic center, convention center and fairgrounds; and a water canal in the Bricktown entertainment district. Water taxis transport passengers within the district, adding color and activity along the canal. MAPS has become one of the most successful public-private partnerships undertaken in the U.S., exceeding $3 billion in private investment as of 2010. As a result of MAPS, the population living in downtown housing has exponentially increased, together with demand for additional residential and retail amenities, such as grocery, services, and shops.
Document 2: Tom Purtzer: Purtzer was born in Des Moines, Iowa. He attended Arizona State University in Tempe, where he was a member of the school's golf team. He graduated in 1973 and turned pro. He followed in the footsteps of his older brother, Paul, who also played golf for Arizona State and played on the PGA Tour in the 1970s and early 1980s.
Document 3: Mexico City: Originally much of the valley laid beneath the waters of Lake Texcoco, a system of interconnected salt and freshwater lakes. The Aztecs built dikes to separate the fresh water used to raise crops in chinampas and to prevent recurrent floods. These dikes were destroyed during the siege of Tenochtitlan, and during colonial times the Spanish regularly drained the lake to prevent floods. Only a small section of the original lake remains, located outside the Federal District, in the municipality of Atenco, State of Mexico.
Document 4: Oklahoma City: Walking trails line Lake Hefner and Lake Overholser in the northwest part of the city and downtown at the canal and the Oklahoma River. The majority of the east shore area is taken up by parks and trails, including a new leashless dog park and the postwar-era Stars and Stripes Park. Lake Stanley Draper is the city's largest and most remote lake.
Document 5: Dammam: Having been built from the ground up, the Dammam Area was designed from the outset on the principles of modern urban planning. Residential areas are separate from commercial sections, roads are broad and straight and buildings conform to a master plan. One of the main features of the development of the area is land reclamation. Vast stretches of the shallow Persian Gulf waters have been filled, with hotels and office buildings occupying what were once marshes. Water for household, urban and industrial use is provided by desalination plants that supply approximately seven million cubic feet of treated water to the area each day. The availability of water underpins the urban and industrial growth of the Dammam Area, and provisions have been made for expanding existing desalination facilities to meet future growth.
Document 6: Steve Runge: Runge was born in Newport Beach, California. He played college golf at Ohio State University. He turned professional in 1992.
Document 7: Oklahoma City: Oklahoma City has a major park in each quadrant of the city, going back to the first parks masterplan. Will Rogers Park, Lincoln Park, Trosper Park, and Woodson Park were once connected by the Grand Boulevard loop, some sections of which no longer exist. Martin Park Nature Center is a natural habitat in far northwest Oklahoma City. Will Rogers Park is home to the Lycan Conservatory, the Rose Garden, and Butterfly Garden, all built in the WPA era. Oklahoma City is home to the American Banjo Museum, which houses a large collection of highly decorated banjos from the early 20th century and exhibits on the history of the banjo and its place in American history. Concerts and lectures are also held there.
Document 8: Buddy Rice: Born in Phoenix, Arizona, Buddy Rice is the son of a former drag racer. Rice's grandfather was from Indianapolis and passed on his interest in racing to Rice's father. Rice saw his first race when he was six years old. He started racing in go-karts when he was 11. Rice played baseball in high school in Phoenix, Arizona, and attracted the attention of college and professional scouts. However, both Rice and his father decided he would pursue a career in racing instead.
Document 9: Oklahoma: Regular LPGA tournaments are held at Cedar Ridge Country Club in Tulsa, and major championships for the PGA or LPGA have been played at Southern Hills Country Club in Tulsa, Oak Tree Country Club in Oklahoma City, and Cedar Ridge Country Club in Tulsa. Rated one of the top golf courses in the nation, Southern Hills has hosted four PGA Championships, including one in 2007, and three U.S. Opens, the most recent in 2001. Rodeos are popular throughout the state, and Guymon, in the state's panhandle, hosts one of the largest in the nation.
Document 10: Sam King: King was born in Sevenoaks, Kent, England, a short distance from the Knole Golf Club, and lived there most of his life. His father was a charcoal burner at the Knole House Estate. King became a caddy at the club as a boy, and learned to play. By 1929, he was the assistant club professional, and began playing in local and national tournaments. In his career, King had nine top-10 finishes at The Open Championship between 1939 and 1959.
Document 11: Oklahoma City: The city is roughly bisected by the North Canadian River (recently renamed the Oklahoma River inside city limits). The North Canadian once had sufficient flow to flood every year, wreaking destruction on surrounding areas, including the central business district and the original Oklahoma City Zoo. In the 1940s, a dam was built on the river to manage the flood control and reduced its level. In the 1990s, as part of the citywide revitalization project known as MAPS, the city built a series of low-water dams, returning water to the portion of the river flowing near downtown. The city has three large lakes: Lake Hefner and Lake Overholser, in the northwestern quarter of the city; and the largest, Lake Stanley Draper, in the sparsely populated far southeast portion of the city.
Document 12: Palermo: Today both the Papireto river and the Kemonia are covered up by buildings. However, the shape of the former watercourses can still be recognised today, because the streets that were built on them follow their shapes. Today the only waterway not drained yet is the Oreto river that divides the downtown of the city from the western uptown and the industrial districts. In the basins there were, though, many seasonal torrents that helped formed swampy plains, reclaimed during history; a good example of which can be found in the borough of Mondello.
Document 13: Rives McBee: McBee was born in Denton, Texas, and has called nearby Irving home for most of his life. He played on the PGA Tour from 1965 to 1971, before accepting a job as the head golf professional at Las Colinas Country Club in Irving. His best finish in a major championship was T-13 at the 1966 U.S. Open. He was a founding member of the Northern Texas Junior Golf Association, and a former Northern Texas PGA "Teacher of the Year". McBee won the club pro's national title in 1973.
Document 14: Findlay S. Douglas: Born in St Andrews, Scotland, Douglas learned to play golf as a boy. He attended the University of St Andrews from 1892 to 1896, and played on the golf team. After graduation, he followed his oldest brother Robert and emigrated to the United States in 1897.
Document 15: Tag Ridings: Ridings was born in Oklahoma City, Oklahoma. His father, an Oklahoma club professional, started him in golf. Ridings played at the University of Arkansas, graduating in 1997 with a degree in marketing; he turned professional later that year.
ground_truth: North Canadian River
sub_queries: Tag Ridings >> place of birth Answer: Oklahoma City
What river flows through Oklahoma City ? Answer: North Canadian River