Question: How many times longer than an Association football pitch is the stadium in Prague at which the Spartakiads took place?

Context paragraphs:
List of European stadiums by capacity: The following is a list of the largest European stadiums.  They are ordered by their audience capacity; i.e. the maximum number of spectators the stadium can normally accommodate.  This means that if standings are allowed they are not counted.  The capacity figures are for permanent total capacity, including seating and any official standing areas, but excluding any temporary seating or standing.  Note that movable seating - used by multi-purpose stadiums (such as those supporting both a rugby or association football pitch plus an athletics track) to regularly convert the stadium for maximum spectator viewing convenience at one of its supported sporting events - is considered permanent rather than temporary seating in determining such maximum capacities, as is any form of retractable seating associated with safe standing (which allows the same spectator area in a stadium to be used for either standing or seated purposes).

Football pitch: A football pitch (also known as a football field or soccer field) is the playing surface for the game of association football.  its dimensions and markings are defined by Law 1 of the Laws of the Game, "The Field of Play".  The surface can be either natural or artificial, but FIFA's Laws of the Game specify that all artificial surfaces must be painted green.  The pitch is typically made of turf (grass) or artificial turf, although amateur and recreational teams often play on dirt fields.

Philoliche longirostris: Philoliche longirostris is a fly of the Tabanidae family native to India, specifically the Himalayas.  It was first identified by Thomas Hardwicke in 1823.  Notable is its proboscis, which is "many times longer than its body".

Serowe Stadium: The Serowe Stadium is a multi-purpose stadium located in the town of Serowe, Botswana.  It is a part of the Serowe Sports Complex, a P27 Million integrated-sports project, which was built in 2002 and officially opened in 2003.  The Stadium has a capacity of 6,000 spectators.  The main stadium has a football pitch, with an athletics running track surrounding the pitch.  Inside the centre-piece there are also facilities for high-jump, long-jump, pole vault and other athletics sports.  Outside the stadium, but within the same complex, there are numerous netball, volleyball, softball and tennis courts.  The centre has provided to be a great tool to local community, providing a standard sporting facility.  It has also been proved to become a main training centre for many of the country's national athletes and a base camp for the national teams, reducing the burden on the National Stadium, which is currently the country's only other major sports complex.

Strahov Stadium: The Great Strahov Stadium (Czech: Velký strahovský stadion ) is a stadium in the Strahov district of Prague, Czech Republic.  It was built for displays of synchronized gymnastics on a massive scale, with a field three times as long as and three times as wide as than the standard Association football pitch.

Wolverton A.F.C.: Wolverton Association Football Club, often known simply as Wolverton, was an English football team representing the town of Wolverton (and, for a time, Milton Keynes).  The club's motto was "In Omnia Paratus" (lit: "In all things prepared").  The club was wound up in 1992.  Until 2007, its former home ground, Wolverton Park had what was believed to be the oldest football stand in the United Kingdom.  The ground and immediate area has since been redeveloped into a housing area, Wolverton Park housing development.  In November 2012, the football stand structure is still in place, but it has been stripped to act as an ornamental feature on the edge of the community park which has been built on top of the old football pitch.

Paraulax queulensis: Paraulax queulensis is a species of gall wasp.  Biology of "Paraulax" species is unknown but given they are associated with "Nothofagus" forests their biology is probably associated with the pteromalid gall community.  This species is named after the place where it was first collected, Los Queules National Reserve.  "P. queulensis" closely resembles "P. perplexa", bearing common traits such as colour, habitus and several morphological characters.  "P. queulensis" differs by having a more elongate body, which in the female is 4 times longer than it is high; its mesosoma is 1.6 times longer than high, while its metasoma is 1.9 times longer than high.  The mesosoma is more dorsoventrally depressed.  Its pronotum s 1.5 times longer laterally than high.  It possesses longitudinal costulae running from the lateral margin of its pronotal plate to its lateral surface.  Its scutellar foveae is discernible even when shallow (Fig. 4C).  The antenna also differs: the pedicel of the female antenna is 1.4 times longer than wide.

Spartakiad of Peoples of the USSR: Spartakiad of Peoples of the USSR (Russian: Спартакиада народов СССР , Spartakiada narodov SSSR) were mass multi-event competitions in the Soviet Union in 1956-1991, descendants of the 1928 All-Union Spartakiad that took place in Moscow.  The competitions were conducted between constituent republics of the Soviet Union, while the Russian side was represented by three teams and included separate teams from Leningrad and Moscow.  The competitions also were organized as winter and summer.  There were 10 summer Spartakiads and 7 winter Spartakiads.

Changlimithang Stadium: Changlimithang Stadium is a multi-purpose stadium in Thimphu, Bhutan, which serves as the National Stadium.  It is predominantly used for football matches and is the home of both the Bhutan national football team and a number of Thimphu-based football clubs who play in both the A-Division and the National League.  In addition to football, the stadium also regularly plays host to major archery tournaments, the national sport of Bhutan.  The stadium was initially constructed in 1974 for the coronation of the fourth Druk Gyalpo Jigme Singye Wangchuck, but was completely refurbished in 2007 in advance of the coronation of the fifth Druk Gyalpo Jigme Khesar Namgyel Wangchuck.  Floodlighting was added to the football pitch in 2009 and an artificial pitch was laid in 2012 to coincide with the start of the first season of the National League.

Spartakiad (Czechoslovakia): The Spartakiads or Spartakiades in Czechoslovakia (Czech: "Spartakiáda" , Slovak: "Spartakiáda" ) were mass gymnastics events, designed to celebrate the Red Army's liberation of Czechoslovakia in 1945.  They were organised by the Communist government as a replacement of the similar Sokol gatherings, which were disapproved by the regime and discontinued after World War II.  The Spartakiads took place at the Strahov Stadium, the largest stadium ever built and the venue of the last pre-war Sokol gathering.

Supporting paragraphs: Spartakiad (Czechoslovakia) Strahov Stadium
Answer: three