Question: What main river does the West River, that flows through Addison Maine, run into?

Context paragraphs:
West River Sheet Harbour: West River Sheet Harbour (locally known as West River) is a river on the Eastern Shore of Nova Scotia, Canada, in the Halifax Regional Municipality.  Its headwaters are near the Musquodoboit Valley and the river flows southeast and empties in to the Northwest Arm of Sheet Harbour, Nova Scotia.  The river has three main tributaries: West River Main, Killag River and Little River.  The river was suffering from acidification, so a lime doser was installed and has been in use since September 2005.  It stabilized the river's pH at 5.5, a healthy level for aquatic life.

Sheet Harbour, Nova Scotia: Sheet Harbour is a rural community on the Eastern Shore of Nova Scotia, Canada.  It is part of the Halifax Regional Municipality and lies along the Marine Drive on Trunk 7 approximately 117 km northeast of Halifax.  The catchment area around the community contains approximately 5,000 people.  The community is located along the shores of Sheet Harbour, which has two arms: the Northwest Arm and the Northeast Arm.  Two rivers flow into the harbour: West River into the Northwest Arm, and East River into the Northeast Arm.  Little West River, a minor river, also flows into the Northwest Arm.  Grand Lake, a large lake west of Sheet Harbour, empties into the Atlantic Ocean, via the Little West River.  Adjacent to the community is the Sheet Harbour Industrial Port, an important regional deep-water port.  The majority of the land was granted in 1773 and the colony was established in 1784.  Forestry was prominent in Sheet Harbour during its early years.  The first sulphide pulp mill in the Dominion of Canada was constructed along the East River in 1885.  However, it was closed in 1891, due to the high prices of importing sulphide.  Another pulp mill was constructed beside the West River Falls in 1925, but it was destroyed by Hurricane Beth in August 1971.  The community today relies on forestry, fishing and tourism.

Kosasthalaiyar River: Kosasthalaiyar River, also known as "'Kortalaiyar" in Manali a distributary, is one of the three rivers that flow in the Chennai metropolitan area.  The 136 km river originates near pallipet in thiruvallur District and drains into the Bay of Bengal.  Its northern tributary Nagari river originates in Chitoor district of Andhra Pradesh and joins the main river in the back waters of Poondy dam.  Its catchment area spreads in Vellore, Chitoor, North Arcot, Thiruvallur and Chennai districts.  It has catchment area in North Arcot District with a branch near Kesavaram Anicut and flows to the city as Cooum River and the main Kosasthalaiyar River flows to Poondi reservoir.  From Poondi reservoir, the river flows through Thiruvallur District, enters the Chennai metropolitan area, and joins the sea at Ennore creek.  There are two check dams across the river at Tamaraipakkam and Vallur.  The excess discharge in the river is controlled by the Tamarapakkam Anicut located across the river in the downstream of Poondi reservoir.  Vallur Anicut is a small check dam constructed near Minjur across the river to control water levels and feed irrigation channels in the area.  It flows to a distance of 16 km in the Chennai metropolitan area.  The total catchment area of the river is 3757 km , and the bed width ranges from 150 to .  The discharge capacity of the river is 110000 m3/s , and the anticipated flood discharge capacity is about 125000 m3/s .

West River (neighborhood): West River is an official neighborhood of the city of New Haven, Connecticut.  The neighborhood covers the part of the city east of the West River (boundary with the city of West Haven) and south of Chapel Street.  Official planning maps run the eastern and southern boundaries run along Day Street, Legion Avenue, Winthrop Avenue, and Davenport Avenue.  The neighborhood includes West River Memorial Park and Evergreen Cemetery.  The Hospital of St. Raphael is also included within the official neighborhood planning area.

West River (Maine): The West River is a short river in Addison, Maine.  From its source ( ), the river runs about 5 mi to its confluence with the Indian River at the head of Wohoa Bay.

Rhode Island Tool Company building: The Rhode Island Tool Company is a historic industrial property at 146-148 West River Street in Providence, Rhode Island.  It is a 5 acre parcel located between West River Street and the channelized West River, on which stand two historic buildings.  The main building of the complex is a sprawling agglomeration of attached structures, whose construction began in 1853, and whose surviving elements include six parts that predate the American Civil War.  Construction of the complex was begun by the Providence Forge & Nut Company, which purchased the Providence Tool Company, and was the largest employer in Providence in the 1870s.  The complex represents the best-preserved period metal-processing facility in Providence, and was the only drop-forging operation the state when it closed in 2003.

Tawachiche West River: The Tawachiche West River is located in the Municipality of Lac-aux-Sables (the mouth is 9.5 km North of the village of Hervey-Jonction), in the administrative region of Mauricie, in the province of Quebec, Canada.  Flowing mostly in the Marmier (township), its watershed is part of the Batiscanie, in the area of the MRC Mékinac.  Water of Tawachiche west river is going down from the north-west to south-east to empty into the Tawachiche River.  Tawachiche West River is located entirely in forest area.  The surface of the river is usually frozen from November to April.  Annually, the river flow is high during the spring thaw.

Main river: Main rivers (Welsh: "prif afonydd" ) are a statutory type of watercourse in England and Wales, usually larger streams and rivers, but also include some smaller watercourses.  A main river is defined as a watercourse marked as such on a main river map, and can include any structure or appliance for controlling or regulating the flow of water in, into or out of a main river.  The Environment Agency's powers to carry out flood defence works apply to main rivers only.  In England main rivers are designated by Defra.  The Welsh Government performs this function in Wales.  Every other open watercourse in England and Wales is determined by statute as an 'ordinary watercourse'.

Addison, Maine: Addison is a town in Washington County, Maine, United States.  The town was named after English author Joseph Addison.  The population was 1,266 as of the 2010 census.

West Hill Dam: West Hill Dam Reserve is a United States Army Corps of Engineers flood control project with a recreational park and wildlife management area located at Uxbridge, Massachusetts.  The West Hill Dam Project was completed in 1960.  It is located on the West River, one of the branches of the Blackstone River which flows from Worcester, MA to Providence, RI.  The West River originates in Grafton, Massachusetts, at Cider Mill Pond and Silver Lake, near Upton, Massachusetts, and the Upton State Forest.  The dam is unusual in that it isn't filled unless there is a flood.

Supporting paragraphs: West River (Maine) Addison, Maine
Answer: Indian River