Question: West Ham United F.C. is located where in Stratford, London, England, at Marshgate Lane in the Lower Lea Valley?

Context paragraphs:
Lower Lea Valley: The Lower Lea Valley is the southern end of the Lea Valley which surrounds the River Lea.  It is part of the Thames Gateway redevelopment area and was the location of the 2012 Summer Olympics.

West Ham United F.C.: West Ham United Football Club is a professional football club based in Stratford, East London, England.  They compete in the Premier League, the top tier of English football.  The club re-located to the London Stadium in 2016.

Lea Valley lines: The Lea Valley lines are two commuter lines and two branches in North East London, so named because they run along the Lower Lea Valley of the River Lea.  They were part of the Great Eastern Railway, now part of the "Anglia Route" of Network Rail.

Ownership of West Ham United F.C.: West Ham United F.C. is a football club based in London.  It was founded in 1900 by Arnold Hills, owner of Thames Ironworks and Shipbuilding Company.  The club's forerunner, Thames Ironworks F.C. ceased to exist in 1900 with West Ham United being formed to take its place.

Hashtag United F.C.: Hashtag United F.C. is an English YouTube-based football club that was founded in 2016.  They gained notability due to recording their matches, making videos around them and posting them to their player/manager, Spencer Owen's YouTube channel, known as Spencer FC, which has just under 2 million subscribers.  They have played many teams including several Premier League staff teams such as Manchester City, West Ham United and Crystal Palace FC as well as the staff teams of Major League Soccer clubs, Atlanta United and New York City F.C..  They have also played and beaten the youth teams of some semi-professional clubs, Biggleswade United F.C. and Newhaven F.C. As of September 2017, their Twitter and Instagram accounts have over 100,000 followers each.  The club also controls a YouTube channel where they upload 5-a-side matches that the club participates in and vlogs.

Lea Valley: The Lea Valley, the valley of the River Lea, has been used as a transport corridor, a source of sand and gravel, an industrial area, a water supply for London, and a recreational area.  The London 2012 Summer Olympics were based in Stratford, in the Lower Lea Valley.

West Ham United F.C. Under-23s: West Ham United F.C. Under-23s, formerly West Ham United F.C. Under-21s is the most senior of West Ham United's youth teams.  The Under-23 team is effectively West Ham United's second-string side, but is limited to three outfield players and one goalkeeper over the age of 23 per game following the introduction of new regulations from the 2012–13 season.  They play in Premier League 2 and also compete in the Checkatrade Trophy.

London Stadium: London Stadium (originally known as the Olympic Stadium) is a stadium in Stratford, London, England, at Marshgate Lane in the Lower Lea Valley.  It was constructed to serve as the home stadium for the 2012 Summer Olympics and Paralympics, hosting the track and field events and opening and closing ceremonies.  It was subsequently renovated as a multi-purpose stadium, with its primary tenants being West Ham United Football Club and British Athletics.  The stadium is 6+1/2 mi from Central London.

West Ham United F.C. supporters: West Ham United F.C. supporters are the followers of the London-based West Ham United Football Club, who were founded as Thames Ironworks in 1895.  There are 700,000 fans on the club's database and over 1,000,000 likes on Facebook.  The club's website is in the top ten most visited websites for English football clubs by people in the USA.  Their fans are also associated with a once-notorious hooligan element and have long-standing rivalries with several other clubs, most notably Millwall.

World Cup Sculpture: The World Cup Sculpture, or simply The Champions, is a bronze statue of the 1966 World Cup Final located near West Ham United Football Club's Boleyn Ground (Upton Park) stadium in the London Borough of Newham, England.  It depicts a famous victory scene photographed after the final, held at the old Wembley Stadium in London, featuring Bobby Moore, Geoff Hurst, Martin Peters and Ray Wilson.  It was the first and only time England had won the World Cup, and England captain Moore is pictured held shoulder high, holding the Jules Rimet Trophy aloft.  Jointly commissioned by Newham Council and West Ham United, it stands at the junction of Barking Road and Green Street, near the Boleyn Ground.  It commemorates West Ham's contribution to the victory, with Moore, Hurst and Peters having all been West Ham players at the time of the 1966 World Cup.  Sculpted by the Royal Sculptor Philip Jackson, it was unveiled in 2003 by Prince Andrew, president of the Football Association.  Jackson went on to also sculpt the statue of Bobby Moore unveiled at the new Wembley when it opened in 2007.

Supporting paragraphs: West Ham United F.C. London Stadium
Answer: London Stadium