Question: What is the capacity of the entertainment venue at which the 1996 World Matchplay darts tournament was held?

full_context: Document 1: Alhambra, Blackpool: The Alhambra was an entertainment complex in Blackpool, Lancashire, England, from 1899–1903. A financial disaster, the building was bought by the Blackpool Tower Company and reopened in 1904 as the Palace. The building was demolished in 1961 to make way for Lewis's department store.
Document 2: Blackpool Zoo: Blackpool Zoo is a 32 acre zoo, owned by Parques Reunidos and located in the sea-side resort of Blackpool, Lancashire, England. It provides a home to over 1,500 animals from all over the world. The zoo has recently changed ownership twice – once in 2003, and again in 2007, resulting in continued investment each year.
Document 3: 2003 World Matchplay (darts): The 2003 World Matchplay was a darts tournament held in the Empress Ballroom at the Winter Gardens, Blackpool. This was the fourth World Matchplay tournament to be sponsored by UK bookmaker Stan James. The tournament ran from 27 July through 2 August 2003, and was won by Phil Taylor.
Document 4: 1995 World Matchplay (darts): The 1995 Websters World Matchplay was the second annual World Matchplay darts tournament organised by the World Darts Council (WDC, which became the Professional Darts Corporation in 1997). The Winter Gardens, Blackpool played host to the event for the second year running.
Document 5: Peter Ebdon: Peter David Ebdon (born 27 August 1970) is an English professional snooker player. He was World Champion in 2002, beating Stephen Hendry 18–17 in the final, and won the UK Championship in 2006 and 7 other ranking events between 1993 and 2012. He was also a losing finalist in the World Championship in 1996 and 2006. Ebdon turned professional in 1991 and soon made an impact by beating six-time world champion Steve Davis 10–4 in the first round of the 1992 World Championship and reaching the quarter-final stage.
Document 6: Blackpool Mecca: The Blackpool Mecca was a large entertainment venue on Central Drive in the seaside town of Blackpool, Lancashire, in North West England, first opened in 1965. In the 1970s, it was particularly known for The Highland Room, which was a major Northern Soul music venue. The building was closed down in 1980s and was finally demolished in January 2009 to make way for new campus buildings of Blackpool and The Fylde College. However, following an issue with funding B&FC withdrew and as of 2013 the site is planned for residential development.
Document 7: Empress Ballroom: The Empress Ballroom is a 3,000 capacity entertainment venue, in Blackpool, Lancashire, England. It is located within the Winter Gardens, a large entertainment complex in the town centre.
Document 8: 1994 World Matchplay (darts): The 1994 World Matchplay was a darts tournament held in the Empress Ballroom at the Winter Gardens, Blackpool. This was the first World Matchplay tournament to be held at Winter Gardens, and was sponsored by Malaysian automaker Proton. The tournament was won by Larry Butler.
Document 9: Entertainment centre: An entertainment centre is a venue similar to a theatre in that it hosts concerts by musical artists or comedians and such. Entertainment centres usually range up to around 30,000 people. Many entertainment centres usually have small snack stands in which people can buy food and drinks. In some entertainment centers, such as the gaylord entertainment center in Nashville Tennessee, sports events are held.
Document 10: 1996 World Matchplay (darts): The 1996 World Matchplay was a darts tournament held in the Empress Ballroom at the Winter Gardens, Blackpool. The tournament was won by Peter Evison.
Document 11: Manchester Arena: The Manchester Arena is an indoor arena in Manchester, England, immediately north of the city centre and partly above Manchester Victoria station in air rights space.
Document 12: 2001 World Matchplay (darts): The 2001 World Matchplay was a darts tournament held in the Empress Ballroom at the Winter Gardens, Blackpool. This was the second World Matchplay tournament to be sponsored by UK bookmaker Stan James. The tournament ran from 29 July through 4 August 2001, and was won by Phil Taylor.
Document 13: 2014 World Matchplay (darts): The 2014 World Matchplay was the 21st annual staging of the darts tournament, the World Matchplay, organised by the Professional Darts Corporation. The tournament took place at the Winter Gardens, Blackpool, from 19–27 July 2014.
Document 14: Blackpool Tower: Blackpool Tower is a tourist attraction in Blackpool, Lancashire, England, which was opened to the public on 14 May 1894. Inspired by the Eiffel Tower in Paris, it is 518 ft tall and is the 120th tallest freestanding tower in the world. Blackpool Tower is also the common name for Tower buildings, an entertainment complex in a red-brick three-storey block comprising the tower, the ground floor aquarium and cafeteria, Tower Circus, the Tower Ballroom and roof gardens that was designated a Grade I listed building in 1973.
Document 15: 2000 World Matchplay (darts): The 2000 World Matchplay was a darts tournament held in the Empress Ballroom at the Winter Gardens, Blackpool. This was the first World Matchplay tournament to be sponsored by UK bookmaker Stan James. The tournament ran from 23 July through 29 July 2000, and was won by Phil Taylor.
ground_truth: 3,000