Question: Where did the 2008 Olympic torch relay begin in the city where the developer of All 4 is headquartered?

full_context: Document 1: Dippy: In 1999 a public sculpture of Dippy was unveiled on the grounds of the Carnegie Institute and Library complex in the Oakland neighborhood of Pittsburgh, Pennsylvania, in tribute to the 100th anniversary of the discovery of Dippy. The dark, grayish brown life-size fiberglass model weighs 3,000 pounds, stands 22 feet, and measures 84 feet in length. The sculpture was created during a nine-month process from the original fossil. Sited along Forbes Avenue near Schenley Plaza and the lawn of the University of Pittsburgh's Cathedral of Learning, Dippy stands adjacent to the entrances of the Carnegie Music Hall and the Carnegie Museum of Natural History.
Document 2: Channel 4: Channel 4 is a British public - service television broadcaster that began transmission on 2 November 1982. Although largely commercially self - funded, it is ultimately publicly owned; originally a subsidiary of the Independent Broadcasting Authority (IBA), the station is now owned and operated by Channel Four Television Corporation, a public corporation of the Department for Culture, Media & Sport, which was established in 1990 and came into operation in 1993. With the conversion of the Wenvoe transmitter group in Wales to digital on 31 March 2010, Channel 4 became a UK - wide TV channel for the first time.
Document 3: High-definition television: The Freeview HD service currently contains 10 HD channels (as of December 2013[update]) and was rolled out region by region across the UK in accordance with the digital switchover process, finally being completed in October 2012. However, Freeview HD is not the first HDTV service over digital terrestrial television in Europe;
Document 4: Montevideo: The Towers Square, is an area of remarkable aesthetic design, intended to be a platform for the development of business activities, art exhibitions, dance and music performances and social place. This square connects the different buildings and towers which comprise the WTC Complex and it is the main access to the complex. The square contains various works of art, notably a sculpture by renowned Uruguayan sculptor Pablo Atchugarry. World Trade Center 4, with 40 floors and 53,500 square metres (576,000 sq ft) of space is under construction as of 2010[update].[citation needed]
Document 5: 2008 Summer Olympics torch relay: Up to 600 pro-Tibet protesters were expected to attend the relay, along with between 2,000 and 10,000 Chinese supporters. Taking note of the high number of Chinese supporters, Ted Quinlan, head of the Canberra torch relay committee, said: "We didn't expect this reaction from the Chinese community. It is obviously a well-coordinated plan to take the day by weight of numbers. But we have assurances that it will be done peacefully.". Also, Australia's ACT Chief Minister, Jon Stanhope confirmed that the Chinese embassy was closely involve to ensure that "pro-China demonstrators vastly outnumbered Tibetan activists." Australian freestyle swimmer and five-time Olympic gold medalist Ian Thorpe ended the Australian leg of the torch relay April 24, 2008, touching the flame to light a cauldron after a run that was only marginally marked by protests. People demonstrated both for China and for Tibet. At least five people were arrested during the torch relay. Police said "the five were arrested for interfering with the event under special powers enacted in the wake of massive protests against Chinese policy toward Tibet." At one point, groups of Chinese students surrounded and intimidated pro-Tibet protesters. One person had to be pulled aboard a police launch when a group of pro-Chinese students looked like they might force him into the lake.
Document 6: 2008 Summer Olympics torch relay: Thailand: The April 18 relay through Bangkok was the Olympic flame's first visit to Thailand. The relay covered just over 10 km, and included Bangkok's Chinatown. The torch was carried past Democracy Monument, Chitralada Palace and a number of other city landmarks. M.R. Narisa Chakrabongse, Green World Foundation (GWF) chairwoman, withdrew from the torch-running ceremony, protesting against China's actions in Tibet. Several hundred protesters were present, along with Olympic supporters. Thai authorities threatened to arrest foreign protesters and ban them from future entry into Thailand. A coalition of Thai human rights groups announced that it would organise a "small demonstration" during the relay, and several hundred people did indeed take part in protests, facing Beijing supporters. Intended torchbearer Mom Rajawongse Narissara Chakrabongse boycotted the relay, to protest against China's actions in Tibet. In Bangkok, students told the media that the Chinese Embassy provided them with transportation and gave them shirts to wear.
Document 7: Big 4 (sculpture): The Big 4 is a sculpture made of steel bars located outside the headquarters of the Channel Four Television Corporation in London. It is designed to represent the logo of Channel 4 while providing a basis for a number of art installations. As of November 2012 seven installations have been made on the statue's steel framework, including those to coincide with the 2012 Summer Paralympics, covered with both newsprint and umbrellas, and a design to simulate the statue breathing.
Document 8: Xbox 360: On November 6, 2006, Microsoft announced the Xbox Video Marketplace, an exclusive video store accessible through the console. Launched in the United States on November 22, 2006, the first anniversary of the Xbox 360's launch, the service allows users in the United States to download high-definition and standard-definition television shows and movies onto an Xbox 360 console for viewing. With the exception of short clips, content is not currently available for streaming, and must be downloaded. Movies are also available for rental. They expire in 14 days after download or at the end of the first 24 hours after the movie has begun playing, whichever comes first. Television episodes can be purchased to own, and are transferable to an unlimited number of consoles. Downloaded files use 5.1 surround audio and are encoded using VC-1 for video at 720p, with a bitrate of 6.8 Mbit/s. Television content is offered from MTV, VH1, Comedy Central, Turner Broadcasting, and CBS; and movie content is Warner Bros., Paramount, and Disney, along with other publishers.
Document 9: Sky UK: Virgin Media (re-branded in 2007 from NTL:Telewest) started to offer a high-definition television (HDTV) capable set top box, although from 30 November 2006 until 30 July 2009 it only carried one linear HD channel, BBC HD, after the conclusion of the ITV HD trial. Virgin Media has claimed that other HD channels were "locked up" or otherwise withheld from their platform, although Virgin Media did in fact have an option to carry Channel 4 HD in the future. Nonetheless, the linear channels were not offered, Virgin Media instead concentrating on its Video On Demand service to carry a modest selection of HD content. Virgin Media has nevertheless made a number of statements over the years, suggesting that more linear HD channels are on the way.
Document 10: 2008 Summer Olympics torch relay: Great Britain: The torch relay leg held in London, the host city of the 2012 Summer Olympics, on April 6 began at Wembley Stadium, passed through the City of London, and eventually ended at O2 Arena in the eastern part of the city. The 48 km (30 mi) leg took a total of seven and a half hours to complete, and attracted protests by pro-Tibetan independence and pro-Human Rights supporters, prompting changes to the planned route and an unscheduled move onto a bus, which was then briefly halted by protestors. Home Secretary Jacqui Smith has officially complained to Beijing Organising Committee about the conduct of the tracksuit-clad Chinese security guards. The Chinese officials, seen manhandling protesters, were described by both the London Mayor Ken Livingstone and Lord Coe, chairman of the London Olympic Committee as "thugs". A Metropolitan police briefing paper revealed that security for the torch relay cost £750,000 and the participation of the Chinese security team had been agreed in advance, despite the Mayor stating, "We did not know beforehand these thugs were from the security services. Had I known so, we would have said no."
Document 11: All 4: All 4 is a video on demand service from the Channel Four Television Corporation. The service launched on 16 November 2006 as 4oD (shorthand for 4 on Demand). The service offers a variety of programmes recently shown on Channel 4, E4, More4, Film4 and 4Music and shorts. However some programmes and movies are not available due to rights issues, and the service is incapable of streaming in resolutions greater than 576p.
Document 12: Another Place (sculpture): Another Place is a piece of modern sculpture by Sir Antony Gormley located at Crosby Beach in Liverpool City Region, England. It consists of 100 cast iron figures facing towards the sea. The figures are modelled on the artist's own naked body. The work proved controversial due to the ``offensive ''nature of the naked statues but has increased tourism to the beach. After being exhibited at two other locations in Europe a meeting by Sefton Metropolitan Borough Council on 7 March 2007 decided that the sculptures should be permanently installed at the beach.
Document 13: 2008 Summer Olympics torch relay: Indonesia: The Olympic flame reached Jakarta on April 22. The original 20 km relay through Jakarta was cancelled due to "security worries", at the request of the Chinese embassy, and the torch was instead carried round the city main's stadium, as it had been in Islamabad. Several dozen pro-Tibet protesters gathered near the stadium, and were dispersed by the police. The event was held in the streets around the city main's stadium. The cancelling of the relay through the city itself was decided due to security concerns and at the request of the Chinese embassy. Only invitees and journalists were admitted inside the stadium. Protests took place outside the stadium.
Document 14: Way Four: Way Four is a public art work by artist Bernard Kirschenbaum at the Lynden Sculpture Garden near Milwaukee, Wisconsin. The stainless steel sculpture is an open circle that creates an orbit for two triangles; it is installed on the lawn.
Document 15: 2008 Summer Olympics torch relay: In many cities along the North American and European route, the torch relay was protested by advocates of Tibetan independence, animal rights, and legal online gambling, and people protesting against China's human rights record, resulting in confrontations at a few of the relay locations. These protests, which ranged from hundreds of people in San Francisco, to effectively none in Pyongyang, forced the path of the torch relay to be changed or shortened on a number of occasions. The torch was extinguished by Chinese security officials several times during the Paris leg for security reasons, and once in protest in Paris.
ground_truth: Wembley Stadium
sub_queries: All 4 >> developer Answer: Channel Four Television Corporation
Channel Four Television Corporation >> headquarters location Answer: London
Where did the torch relay begin in London for the 2008 Olympics? Answer: Wembley Stadium