Question: The River Bollin that runs through Styal is a major tributary of the River Mersey in what country?

Context paragraphs:
Styal: Styal is a village on the River Bollin near Wilmslow, Cheshire, England.

Carrao River: Carrao River is a river of Venezuela.  It is part of the Orinoco River basin.  It is well known for one of its major tributaries, the Churun River, which feeds Angel Falls, the world's highest waterfall.  Another major tributary is the Ahonda River.  The Carrao River flows primarily through Canaima National Park.  As it starts to flow north, the Carrao River widens and meets the small town of Canaima, a vacationing destination.  It flows north again, but it eventually narrows.  As it continues its course west, it drains into the Caroní River, a major tributary of the Orinoco River in Venezuela.

List of textile mills in Cheshire: This is a list of the silk, cotton and other textile mills in Cheshire, England.  The first mills were built in the 1760s, in Styal by Samuel Greg using the Arkwright system and were powered by the water of the River Bollin.  There were significant early cotton mills; Cheshire was an important centre of the silk industry.  Parts of Cheshire have been subsumed into Stockport and Tameside.

Waihopai River (Marlborough): The Waihopai River—the more northerly of two New Zealand rivers of that name—runs through the South Island's Marlborough Region and is a major tributary of the Wairau River.  The river has its source in the Raglan Range of mountains, some 70 km northwest of Kaikoura.  It runs in a generally northeastward direction for all of its length, the first section of which is through narrow alpine valleys.  After joining its major tributary, the Spray River, the valley begins to widen, becoming a broad valley by the time the second main tributary, the Avon River is reached.  For the last 15 km of its length the Waihopai turns northward, reaching the Wairau 7 km west of Renwick.

Monument to the Mersey Tunnel: The Monument to the Mersey Tunnel stands in Chester Street, Birkenhead, Wirral, Merseyside, England, near the western entrance to the Queensway Tunnel, one of the two Mersey Tunnels carrying roads under the River Mersey between Liverpool and the Wirral.  It consists of shaft with a light on the top, and originally had the dual purpose of being a monument and of illuminating the entrance to the tunnel.  It was designed by Herbert James Rowse, and was one of a pair, but the monument that was on the Liverpool side of the River Mersey no longer exists.  The monument is recorded in the National Heritage List for England as a designated Grade II listed building.

Jingmei River: The Jingmei River () is a major tributary of the Xindian River, which itself is a major tributary of the Tamsui River, Taiwan.  It is located between the Taipei Basin and Beishi River basin and flows through New Taipei City and the capital Taipei City for 28.1 kilometers, before joining the Xindian River at the border of Wenshan District, Taipei, and Yonghe District, New Taipei City, above the Fuhe Bridge.

River Bollin: The River Bollin is a major tributary of the River Mersey in the north-west of England.

Cotterill Clough Nature Reserve: Cotterill Clough is a 5.6 ha nature reserve near Manchester Airport.  It is managed by the Cheshire Wildlife Trust and lies within a larger Site of Special Scientific Interest (SSSI).  The Cotterill Brook, which flows through the clough, is a tributary of the River Bollin.  The reserve was purchased in 1934 by public subscription as a memorial to T. A. Coward (1867–1933), a famous Cheshire naturalist.

Muddy Boggy Creek: Muddy Boggy River, also known as the Muddy Boggy Creek, is a 175 mi river in south central Oklahoma.  a major tributary of the Red River in south central Oklahoma, is formed by the confluence of Muddy Boggy Creek and Clear Boggy Creek.  Both streams converge at a location known as River Mile 24 in Pontotoc County, Oklahoma.  It is a major tributary of the Red River.  The river is inhabited by over one hundred species of fish.

Mersey River (Nova Scotia): The Mersey River, formerly known as Rivière Rossignol by the Acadians, is a river in Nova Scotia, Canada.  It is named after the River Mersey in Liverpool, England.  The river proper flows from the eastern end of Eleven Mile Lake in Annapolis County southward to Kejimkujik Lake in Kejimkujik National Park, then through Lake Rossignol to empty into the Atlantic Ocean at the town of Liverpool, Nova Scotia.  The true source of the river however is as far northwest as Sandy Bottom Lake (Annapolis County) or Tuskopeake Brook (Annapolis County) on the northern tributary.

Supporting paragraphs: Styal River Bollin
Answer: England