Question: What is the capacity of the stadium that Stadium railway station, Perth will serve?

full_context: Document 1: WACA Ground: The WACA (formally the WACA Ground) is a sports stadium in Perth, Western Australia. The stadium's name derives from the initials of its owners and operators, the Western Australian Cricket Association.
Document 2: Stadium railway station, Perth: Stadium railway station is a station being constructed on the Armadale/Thornlie line in Perth, Western Australia. It is scheduled to open in 2017 to serve the new Perth Stadium.
Document 3: Perth marshalling yard: Perth marshalling yard (also known as Perth Yard) was a railway marshalling yard to the immediate west of Perth railway station in Perth, Western Australia and east of West Perth railway station.
Document 4: Sardar Patel Stadium: Sardar Patel Gujarat Stadium (Motera Stadium) is one of the premier cricket stadiums of India in the Motera locality of Ahmedabad. Because of its location, the stadium is commonly called 'Motera Stadium' to avoid confusion with another stadium of the same name in Navrangpura, Ahmedabad. Sardar Patel stadium is owned by Gujarat Cricket Association and comes under the aegis of the West Zone. It is the largest stadium in the state of Gujarat with an official capacity of 49,000 spectators. It is equipped with floodlights for day-and-night games and is a regular venue for Test cricket and One Day Internationals (ODI) matches. It is currently undergoing redevelopment after being demolished completely in late 2015. The new stadium will be the largest cricket stadium in the world with a seating capacity of 110,000 spectators, overtaking the Melbourne Cricket Ground in Australia.
Document 5: Perth Stadium: Perth Stadium is a multi-purpose stadium under construction in Perth, Western Australia, located in the suburb of Burswood. On its completion, it will have a capacity of 60,000 people, making it the third-largest stadium in Australia (after the Melbourne Cricket Ground and Stadium Australia).
Document 6: Western Australian Athletics Stadium: The Western Australian Athletics Stadium is a sports stadium in Perth, Western Australia. It is the main facility for the sport of athletics in Perth. It was constructed to replace the ageing Perry Lakes Stadium nearby, which had been in use since the 1962 British Empire and Commonwealth Games. The stadium houses the head offices of Athletics Western Australia and is a major facility for athletes with the Western Australian Institute of Sport. The stadium is also used for soccer, with Subiaco AFC playing home games at the stadium from 2014.
Document 7: Melbourne Metro Rail Project: The Melbourne Metro Rail Project (marketed as the Metro Tunnel and formally known as the Metro Rail Capacity Project), is a metropolitan rail infrastructure project currently under construction in Melbourne, Australia. It includes the construction of a twin rail tunnel between South Kensington station (north west of the Melbourne City Centre) and South Yarra (in the south east) with five new underground stations.
Document 8: Stadium Australia: Stadium Australia, commercially known as ANZ Stadium and formerly as Telstra Stadium, is a multi-purpose stadium located in the Sydney Olympic Park, in Sydney, Australia. The stadium, which in Australia is sometimes referred to as Sydney Olympic Stadium, Homebush Stadium or simply as the Olympic Stadium, was completed in March 1999 at a cost of A$690 million to host the 2000 Summer Olympics. The current chairman of the stadium's Advisory Board is Robert Webster. Every year since the stadium was built, the New South Wales rugby league team's home games in the State of Origin series have been played there. Also the stadium has since hosted the annual National Rugby League grand final. ANZ Stadium also hosted the 2003 Rugby World Cup finals and Bledisloe Cup matches, regular Sydney Swans and Greater Western Sydney Giants AFL matches, as well as international soccer matches featuring Australia's national team the Socceroos, and exhibition games by Sydney-based A-League team Sydney FC. The stadium also hosted the 2015 AFC Asian Cup final.
Document 9: Subiaco Oval: Subiaco Oval ( ; currently known under naming rights as Domain Stadium, and colloquially as Subi) is a football stadium located in Subiaco, a suburb of Perth, Western Australia. The highest capacity stadium in Western Australia and one of the main stadiums in Australia, seating 43,500 people, the ground is the home of Australian rules football in Western Australia, being the home ground for the West Coast Eagles and Fremantle Football Club, the two Western Australian teams in the Australian Football League (AFL). The ground is also used for occasional West Australian Football League (WAFL) matches, including the competition's yearly grand final. The stadium has also hosted Perth Glory games, including two National Soccer League grand finals, international rules matches, rugby union games and rock concerts. It was the home ground for the Western Force between 2006 and 2009.
Document 10: List of tallest buildings in Perth: This list of tallest buildings in Perth ranks skyscrapers in the Australian city of Perth by height to the highest architectural detail. This ranking system, created by the U.S.-based Council on Tall Buildings and Urban Habitat includes the height to a spire but not to an antenna. The tallest building in Perth is the 51-storey Central Park at 249 m , completed in 1992. It also stands as the tallest building in the state of Western Australia and the eight-tallest building in the country. Brookfield Place was completed in 2012 and became Perth's second-tallest building at 244 m . Perth has the fifth-greatest number of skyscrapers of any Australian city after Sydney, Melbourne, Brisbane and the Gold Coast.
Document 11: Meadowbank Stadium railway station: Meadowbank Stadium railway station was opened on 14 June 1986 by British Rail next to Meadowbank Stadium in Edinburgh to allow spectators to travel to the 1986 Commonwealth Games that were being held at the stadium. A shuttle service ran from Edinburgh Waverley: at most times this consisted of a single train running at 20–30 minute intervals, but at times of high demand a second train was used and frequencies were higher. These operated from platforms 20 and 21 at Edinburgh Waverley, and a temporary ticket office nearby was the only outlet at which tickets could be bought. Special pre-printed Edmondson tickets were issued at a flat fare of £0.50.
Document 12: Wembley Stadium railway station: Wembley Stadium railway station is a Network Rail station in Wembley Park, Wembley, Greater London on the Chiltern Main Line. At a quarter of a mile (400m) south west of the sports venue it is the nearest station to Wembley Stadium.
Document 13: Domain railway station: Domain railway station is a planned station to be built as part of the Melbourne Metro Rail Project. It will be built below St Kilda Road.
Document 14: Perth Oval: Perth Oval (also known as nib Stadium under a naming rights agreement with nib Health Funds) is a sports stadium in Perth, the capital of the Australian state of Western Australia. Located close to Perth's central business district, the stadium currently has a maximum capacity of 20,500 people for sporting events and 25,000 people for concerts, with the ground's record attendance of 32,000 people set during an Ed Sheeran concert in 2015. The land on which the stadium was built was made a public reserve in 1904, with the main ground developed several years later.
Document 15: Joondalup railway station: Joondalup railway station is a railway station on the Transperth network. It is located on the Joondalup line, 26 kilometres from Perth station serving the regional metropolitan city of Joondalup.
ground_truth: 60,000