Question: Matthew Pettinger's birth place is on the which river?

full_context: Document 1: Matt Hackett: Matthew Hackett (born March 7, 1990) is a Canadian professional ice hockey goaltender. He is currently with the Orlando Solar Bears in the ECHL. He was selected by the Minnesota Wild in the 3rd round (77th overall) of the 2009 NHL Entry Draft. Matt is a nephew to former NHL goaltender Jeff Hackett.
Document 2: Edmonton: Edmonton is the capital city of the Canadian province of Alberta. Edmonton is on the North Saskatchewan River and is the centre of the Edmonton Capital Region, which is surrounded by Alberta's central region. The city anchors the north end of what Statistics Canada defines as the "Calgary–Edmonton Corridor".
Document 3: Peter Bakovic: Peter George "Pete" Bakovic (born January 31, 1965 in Thunder Bay, Ontario) is a retired former professional ice hockey left wing who played briefly in the National Hockey League in the late 1980s for the Vancouver Canucks.
Document 4: Fort Saskatchewan: Fort Saskatchewan is a city in Alberta, Canada, located 25 km northeast of Edmonton, Alberta's capital city, along the North Saskatchewan River. Fort Saskatchewan is part of the Edmonton census metropolitan area and is one of 24 municipalities that comprise the Capital Region Board (CRB). Fort Saskatchewan's population in the 2016 federal census was 24,149 while it was 24,569 in the city's 2016 municipal census.
Document 5: Matthew Peca: Matthew Peca (born April 27, 1993) is a Canadian professional ice hockey player who is currently playing for the Syracuse Crunch in the American Hockey League (AHL) as a prospect to the Tampa Bay Lightning of the National Hockey League (NHL). He was selected by the Lightning in the seventh round (201st overall) of the 2011 NHL Entry Draft.
Document 6: Matt Pettinger: Matthew Pettinger (born October 22, 1980) is a Canadian professional ice hockey left winger who is currently an unrestricted free agent who last played for the Hamburg Freezers of the Deutsche Eishockey Liga (DEL). He has previously played in the National Hockey League with the Tampa Bay Lightning, Vancouver Canucks and the Washington Capitals. Pettinger was born in Edmonton, Alberta and raised in Victoria, British Columbia.
Document 7: High Level Bridge (Edmonton): The High Level Bridge is a bridge that spans the North Saskatchewan River in Edmonton, Alberta, Canada. Located next to the Alberta Legislature Building, the bridge linked the separate communities of Edmonton and Strathcona, which became one city in 1912. It was designed from the outset to accommodate rail, streetcar, automobile and pedestrian traffic. The bridge was designated a Municipal Historic Resource in 1995. Trucks are prohibited on the bridge due to the low clearance of 3.2 m and substandard lane width. Currently street traffic is one-way southbound. At the north end of the bridge, 109 Street becomes the left lane, and 110 Street becomes the right lane. The next bridge downstream, the Walterdale Bridge, is a two-lane bridge with one-way northbound traffic into the downtown.
Document 8: Petter Granberg: Petter Jonas Granberg (born 27 August 1992) is a Swedish professional ice hockey player. He is currently playing within the Nashville Predators organization of the National Hockey League (NHL). Granberg was drafted 116th overall by the Toronto Maple Leafs in the 2010 NHL Entry Draft.
Document 9: Matt Moulson: Matthew Keith Moulson (born November 1, 1983) is a Canadian professional ice hockey left winger for the Buffalo Sabres of the National Hockey League (NHL). Moulson was drafted in the ninth round, 263rd overall, of the 2003 NHL Entry Draft by the Pittsburgh Penguins. Currently in his second stint with the Sabres, he has also played in the NHL for the Los Angeles Kings, New York Islanders and Minnesota Wild.
Document 10: Demographics of Edmonton: According to the 2011 census, the City of Edmonton had a population of 812,201 residents, compared to 3,645,257 for all of Alberta, Canada. The total population of the Edmonton census metropolitan area (CMA) was 1,159,869, making it the sixth-largest CMA in Canada, while Statistics Canada estimated the CMA's 2011 population to be 1,196,342. In 2014, a municipal census indicated the city had a population of 877,926.
Document 11: Downtown Edmonton: Downtown Edmonton is the central business district of Edmonton, Alberta. Located at the geographical centre of the city, the downtown area is bounded by 109 Street to the west, 105 Avenue to the north, 97 Street to the east, 97 Avenue and Rossdale Road to the south, and the North Saskatchewan River to the southeast.
Document 12: 109 Street, Edmonton: 109 Street is an arterial road in central Edmonton, Alberta, Canada. It takes travelers out of Downtown to the south to Old Strathcona, and to the north to the Kingsway area. It passes several Edmonton landmarks including the Garneau Theatre, Alberta Legislature Building, MacEwan University, RCMP "K" Division Headquarters, and Kingsway Mall. It is a one-way street, southbound, from 97 Avenue to Saskatchewan Drive (88 Avenue), to cross the North Saskatchewan River on the narrow High Level Bridge. Before Edmonton's amalgamation with Strathcona in 1912, the Edmonton portion was known as 9 Street.
Document 13: Ottawa: Ottawa ( or ; ] ) is the capital city of Canada. It stands on the south bank of the Ottawa River in the eastern portion of southern Ontario. Ottawa borders Gatineau, Quebec; the two form the core of the Ottawa–Gatineau census metropolitan area (CMA) and the National Capital Region (NCR). As of 2016 Ottawa had a city population of 934,243 and a metropolitan population of 1,323,783 making it the fourth-largest city and the fifth-largest CMA in Canada.
Document 14: Bow River: The Bow River is a river in the Canadian province of Alberta. It begins in the Rocky Mountains and winds through the Alberta foothills onto the prairies where it meets the Oldman River, the two then forming the South Saskatchewan River. These waters ultimately flow through the Nelson River into Hudson Bay. The Bow River runs through the city of Calgary, taking in the Elbow River at the historic site of Fort Calgary near downtown. The Bow River pathway, developed along the river's banks, is considered a part of Calgary's self-image.
Document 15: Matthew Spencer (ice hockey): Matthew Spencer (born March 24, 1997) is a Canadian professional ice hockey defenceman. He is currently playing with the Syracuse Crunch of the American Hockey League (AHL) as a prospect to the Tampa Bay Lightning of the National Hockey League (NHL). Spencer was selected by the Lightning, 44th overall, of the 2015 NHL Entry Draft.
ground_truth: North Saskatchewan River