paragraph_text: The Columbia River is the largest river in the Pacific Northwest region of North America. The river rises in the Rocky Mountains of British Columbia, Canada. It flows northwest and then south into the US state of Washington, then turns west to form most of the border between Washington and the state of Oregon before emptying into the Pacific Ocean. The river is long, and its largest tributary is the Snake River. Its drainage basin is roughly the size of France and extends into seven US states and a Canadian province. The fourth-largest river in the United States by volume, the Columbia has the greatest flow of any North American river entering the Pacific.

paragraph_text: The 2011 Assiniboine River flood was caused by above average precipitation in Western Manitoba and Saskatchewan. This was a 1 in 300 year flood that affected much of Western Manitoba. The flooding in Manitoba was expected to mostly involve the 2011 Red River Flood but instead the more severe flooding was found on the Assiniboine in the west.

paragraph_text: The Metsimotlhabe River is the largest river in the Kweneng District of Botswana, draining the area that lies to the south of Molepolole into the Notwane River, in turn a tributary of the Limpopo River.

paragraph_text: Utva () is a river in Perm Krai, Russia, a right tributary of the Veslyana River, which in turn is a tributary of the Kama River. The river is long, and its drainage basin covers . The source of the river is in the extreme southwest of the Gaynsky District of Perm Krai, near the border with Kirov Oblast and the Komi Republic. The main tributaries are the Chugrum River (right) and the Yuzhnaya Anva River (left).

paragraph_text: Camaipi River is a river of Amapá state in Brazil. It is a tributary of the Vila Nova River which in turn is part of the Amazon River system.

paragraph_text: The Patuxent River is a tributary of the Chesapeake Bay in the state of Maryland. There are three main river drainages for central Maryland: the Potomac River to the west passing through Washington, D.C., the Patapsco River to the northeast passing through Baltimore, and the Patuxent River between the two. The Patuxent watershed had a rapidly growing population of 590,769 in 2000. It is the largest and longest river entirely within Maryland, and its watershed is the largest completely within the state.

paragraph_text: Bolshaya Lyampa () is a river in Perm Krai, Russia, a right tributary of Uls River which in turn is a tributary of Vishera River. The river is long. Its source is near the border with Sverdlovsk Oblast. It flows into the Uls River from the larger river's mouth. The Bolshaya Lyampa's main tributary is the Malaya Lyampa River.

paragraph_text: The Golden Retriever was originally bred in Scotland in the mid-19th century. At that time, wildfowl hunting was a popular sport for the wealthy Scottish elite, but the existing retriever breeds were inadequate for retrieving downed game from both water and land. Retrieving from both land and water was necessary because the hunting grounds of the time were pocketed with marshy ponds and rivers. Consequently, the best water spaniels were crossed with the existing retrievers, resulting in the establishment of the breed today known as the Golden Retriever. The Golden Retriever was first developed near Glen Affric in Scotland, at ``Guisachan '', the highland estate of Dudley Marjoribanks, 1st Baron Tweedmouth. For many years, what breeds were originally crossed was disputed, but in 1952, the publication of Marjoribanks' breeding records from 1835 to 1890 dispelled the myth concerning the purchase of a whole troupe of Russian tracker sheepdogs from a visiting circus; instead it details a careful line - breeding program. Commonly, the breed is said to have originated from the Russian tracker.

paragraph_text: The Kunwak River is a river of Nunavut, Canada. It flows northeast out of Tulemalu Lake and enters Tebesjuak Lake, Mallery Lake and Princess Mary Lake before turning southeast and flowing into Thirty Mile Lake on the Kazan River.

paragraph_text: Botanie Valley is in British Columbia's southern interior near Lytton. It is a traditional food source for the Nlaka'pamux people. The name itself means "covering" possibly referring to the abundant plant life covering the area. Botanie Creek enters the Thompson River a few kilometres upstream of its confluence with the Fraser River, making Botanie the Thompson River's last tributary.

paragraph_text: Air Development Squadron Six (VX-6 or AIRDEVRON SIX, commonly referred to by its nickname, "puckered penguins") was a United States Navy Air Development Squadron based at McMurdo Station, Antarctica. Established at Naval Air Station Patuxent River, Maryland on 17 January 1955, the squadron's mission was to conduct operations in support of Operation Deep Freeze, the operational component of the United States Antarctic Program.

paragraph_text: The Columbia River is the largest river in the Pacific Northwest region of North America. The river rises in the Rocky Mountains of British Columbia, Canada. It flows northwest and then south into the US state of Washington, then turns west to form most of the border between Washington and the state of Oregon before emptying into the Pacific Ocean. The river is 1,243 miles (2,000 km) long, and its largest tributary is the Snake River. Its drainage basin is roughly the size of France and extends into seven US states and a Canadian province. The fourth - largest river in the United States by volume, the Columbia has the greatest flow of any North American river entering the Pacific.

paragraph_text: Piaçaca River is a river of Amapá state in Brazil. It is a tributary of the Vila Nova River which in turn is part of the Amazon River basin.

paragraph_text: Mangalam River is the main tributary of the river Gayathripuzha, which in turn is a tributary of Bharathapuzha, the second longest river in Kerala, India. It is around 30 km long in length, with its source from Nelliyampathi forests, and passing through Vadakkencherry, Kannambra, Puthucode, Padur, etc. and joining Gayathripuzha at Plazhi in the border of Thrissur and Palakkad districts.

paragraph_text: The Pawnee River is a river in southwestern Kansas in the United States, about long. It is a tributary of the Arkansas River, which in turn is a branch of the Mississippi River.

paragraph_text: The Indian River is a long river located in western New Hampshire in the United States. The river is a tributary of the Mascoma River, which in turn flows to the Connecticut River and ultimately Long Island Sound.

paragraph_text: Balanak Bonihar O Pallavi ("The peasants on the banks of river Balan and Pallavi") is a short story collection, written by Dr Binod Bihari Verma, on the village life of Mithila on the banks of the Kosi River and its tributaries.

paragraph_text: Founded in 1998, Indian River Charter High School enrolls 750 students in grades 9 through 12. Located next door to Indian River State College’s Mueller Campus, students are encouraged to participate in dual enrollment. IRCHS has regularly rated an “A” or “B” school by Florida’s School Rating System and has been the highest rated high school in Indian River County for the past ten years. Students shoulder a great deal of responsibility within the school environment, from the open campus, to Homebase expectations, and participation in community projects such as cultural events, government meetings, and volunteer activities. Each student is expected to follow a seven point behavior contract in order to remain a student at IRCHS. All students, staff and board members are required to submit to random drug testing in order to remain in the school.

paragraph_text: The Ngunguru River is a river of the Northland Region of New Zealand's North Island. It initially flows southwest before turning east to flow into a long, wide estuary which empties into Ngunguru Bay to the northwest of Whangarei. The town of Ngunguru sits on the estuary's north bank at its opening to the bay.

paragraph_text: A UK Kennel Club survey puts the median lifespan of the breed at 10.75 years (average 9.85). A US breed club survey puts the average lifespan at 9.4 years. 1 in 4 lived to 13 years or more while 1 in 5 do n't live past 5 years.

Question: What is the life expectancy of the type of retriever named after the body of water the Patuxent River turns into?
Answer: average lifespan at 9.4 years