In this task, you are given a set of context paragraph and some supporting facts to answer a question. Your task is to generate answer for given question based on set of context paragraphs and supporting facts.

Context_1 : Prudhoe Bay Oil Field is a large oil field on Alaska's North Slope. It is the largest oil field in both the United States and in North America, covering 213543 acre and originally containing approximately 25 Goilbbl of oil. The amount of recoverable oil in the field is more than double that of the next largest field in the United States, the East Texas oil field. The field is operated by BP; partners are ExxonMobil and ConocoPhillips Alaska. Context_2 : The Kern River Oil Field is a large oil field in Kern County in the San Joaquin Valley of California, north-northeast of Bakersfield in the lower Sierra foothills. Yielding a cumulative production of close to 2 Goilbbl of oil by the end of 2006, it is the third largest oil field in California, after the Midway-Sunset Oil Field and the Wilmington Oil Field, and the fifth largest in the United States. Its estimated remaining reserves, as of the end of 2006, were around 476 Moilbbl , the second largest in the state. It had 9,183 active wells, the second highest in the state. The principal operator on the field is Chevron Corporation Context_3 : Cantarell Field or Cantarell Complex is an aging supergiant oil field in Mexico. It was discovered in 1976 after oil stains were noticed by a fisherman, Rudesindo Cantarell Jimenez, in 1972. It was placed on nitrogen injection in 2000, and production peaked at 2.1 Moilbbl/d in 2003. In terms of cumulative production to date, it is by far the largest oil field in Mexico, and one of the largest in the world. However, production has declined since 2003, falling to 408000 oilbbl/d in April 2012, making it Mexico's second most productive oil field after Ku-Maloob-Zaap. Context_4 : The Tarn oil field is an oil field in North Slope Borough, Alaska, United States. It is adjacent to the Kuparuk Oil Field, Alaska's second largest oil field. Context_5 : The Round Mountain Oil Field is a large oil and gas field in the foothills of the Sierra Nevada, about 10 mi northeast of Bakersfield, California, United States. It is east of the giant Kern River Oil Field, one of the largest in the United States, and also close to the Mount Poso Oil Field and Kern Front Oil Field. With a cumulative total recovery of more than 110 Moilbbl of oil, it is the 48th largest oil field in California, but remains relatively productive with still about ten percent of its reserves remaining in the ground, according to the California Department of Oil, Gas, and Geothermal Resources (DOGGR). Context_6 : Carabobo is an oil field located in Venezuela's Orinoco Belt. As one of the world's largest accumulations of recoverable oil, the recent discoveries in the Orinoco Belt have led to Venezuela holding the world's largest recoverable reserves in the world, surpassing Saudi Arabia in July 2010. The Carabobo oil field is majority owned by Venezuela's national oil company, Petroleos de Venezuela SA (PDVSA). Owning the majority of the Orinoco Belt, and its estimated 1.18 trillion barrels of oil in place, PDVSA is now the fourth largest oil company in the world. The field is well known for its extra Heavy crude oils, having an average specific gravity between 4 and 16 API. The Orinoco Belt holds 90% of the world's extra heavy crude oils, estimated at 256 billion recoverable barrels. While production is in its early development, the Carabobo field is expected to produce 400,000 barrels of oil per day. Context_7 : Dresser Industries was a multinational corporation headquartered in Dallas, Texas, United States, which provided a wide range of technology, products, and services used for developing energy and natural resources. In 1998, Dresser merged with its main rival Halliburton, Halliburton sold many of former Dresser non "oil patch" divisions, retaining the M W Kellogg Engineering and Construction Company and the Dresser oil-patch products and services that complemented Halliburton's energy and natural resource businesses. In 2001 Halliburton sold five separate, but somewhat related former Dresser non "oil patch" divisions, to an investment banking firm. Those five operations later took the name "Dresser Inc." In October 2010, Dresser Inc., was acquired by General Electric. It is headquartered in Addison, Texas. Context_8 : The North Belridge Oil Field is a large oil field along California State Route 33 in the northwestern portion of Kern County, California, about 45 miles west of Bakersfield. It is contiguous with the larger South Belridge Oil Field to the southeast, in a region of highly productive and mature fields. Discovered in 1912, it has had a cumulative production of 136553000 oilbbl of oil, and retains 27443000 oilbbl in reserve, as of the end of 2006, making it the 40th largest oil field in the state. Context_9 : The South Mountain Oil Field is a large and productive oil field in Ventura County, California, in the United States, in and adjacent to the city of Santa Paula. Discovered in 1916, and having a cumulative production of over 158 Moilbbl of oil, it is the 37th largest oil field in California and the second largest in Ventura County (after the Ventura field). As of the beginning of 2009, it retains 316 active wells, and has an estimated 1.4 Moilbbl of oil remaining recoverable with current technology. Vintage Production, a subsidiary of Occidental Petroleum, was the largest operator as of 2009. Context_10 : The Halliburton Company, an American multinational corporation. One of the world's largest oil field service companies, it has operations in more than 70 countries. It owns hundreds of subsidiaries, affiliates, branches, brands, and divisions worldwide and employs approximately 50,000 people. fact_1 : Dresser Industries was a multinational corporation headquartered in Dallas, Texas, United States, which provided a wide range of technology, products, and services used for developing energy and natural resources. fact_2 : In 1998, Dresser merged with its main rival Halliburton, Halliburton sold many of former Dresser non "oil patch" divisions, retaining the M W Kellogg Engineering and Construction Company and the Dresser oil-patch products and services that complemented Halliburton's energy and natural resource businesses. fact_3 : The Halliburton Company, an American multinational corporation. fact_4 : One of the world's largest oil field service companies, it has operations in more than 70 countries. Question: Dresser Industries, merged in 1998 with its main rival, what American multinational corporation, that is one of the world's largest oil field service companies?
Halliburton

Context_1 : Grand Canyon Depot, also known as Grand Canyon Railroad Station, was constructed in 1909-10 for the Atchison, Topeka and Santa Fe Railway at the South Rim of the Grand Canyon, in what is now Grand Canyon National Park. It is one of three remaining railroad depots in the United States built with logs as the primary structure material. The station is within 100 m of the rim of the canyon, opposite the El Tovar Hotel, also built by the railroad. The depot is designated a National Historic Landmark. Context_2 : The Yarlung Tsangpo Grand Canyon or Yarlung Zangbo Grand Canyon () or simply the Tsangpo Canyon, Brahmaputra Canyon or Tsangpo Gorge, along the Yarlung Tsangpo River in Tibet, China, is the deepest canyon in the world, and at 504.6km (314 miles) is slightly longer than the Grand Canyon in the United States, making it one of the world's largest. The Yarlung Tsangpo (Tibetan name for the upper course of the Brahmaputra) originates near Mount Kailash and runs east for about 1700km, draining a northern section of the Himalayas before it enters the gorge just downstream of Pei, Tibet near the settlement of Zhibe. The canyon has a length of about 150 miles (240km) as the gorge bends around Mount Namcha Barwa (7782 m) and cuts its way through the eastern Himalayan range. Its waters drop from about 2,900 m near Pei to about 1,500 m at the end of the Upper Gorge where the Po Tsangpo River enters. The river continues through the Lower Gorge to the Indian border at an elevation of 660 m. The river then enters Arunachal Pradesh and eventually becomes the Brahmaputra. Context_3 : Grand Canyon Village Historic District comprises the historic center of Grand Canyon Village, on the South Rim of the Grand Canyon in Grand Canyon National Park, Arizona. The district includes numerous landmark park structures, many of which are National Historic Landmarks themselves, or are listed on the National Register of Historic Places. The town design as a whole is also significant for its attention to integration with the Grand Canyon landscape, its incorporation of National Park Service Rustic design elements, and for the idiosyncratic design of park concessioner structures such as the El Tovar Hotel. Context_4 : The Bridge is a 2006 British-American documentary film by Eric Steel spanning one year of filming at the famed Golden Gate Bridge which crosses the Golden Gate entrance to San Francisco Bay, connecting the city of San Francisco, California to the Marin Headlands of Marin County, in 2004. The film captured a number of suicides, and featured interviews with family and friends of some of the identified people who had thrown themselves from the bridge that year. Context_5 : The Middle Permian Toroweap Formation is a thin, darker geologic unit, between the brighter colored units of the Kaibab Limestone above, and Coconino Sandstone below. It is a prominent unit in Grand Canyon, Arizona, USA, found through sections of the South Rim, Grand Canyon, and the North Rim, of the Kaibab Plateau; also the Kaibab's southeast extension to Cape Royal, the Walhalla Plateau. The Colorado River of the Grand Canyon makes its excursion from due-south to due-west around the Walhalla Plateau, as it enters the east end of the Grand Canyon's interior, Granite Gorge. The formation is also found in southeast Utah. Context_6 : The Grand Canyon Inn and Campground, also known as the North Rim Inn, were built by the William W. Wylie and the Utah Parks Company as inexpensive tourist accommodations on the North Rim of the Grand Canyon, in Grand Canyon National Park. Intended to complement the more expensive Grand Canyon Lodge, the cabins and Inn were located near Bright Angel Point, but father back than their more expensive counterparts, near the Grand Canyon North Rim Headquarters. The design of the cabins and the redesign of the Inn building were undertaken by architect Gilbert Stanley Underwood. Context_7 : John Hance (1840 January 8, 1919) is thought to be the first non-Native American resident of the Grand Canyon, US. He opened the first tourist trail in the canyon in the late nineteenth century. He started giving tours of the canyon after his attempts at mining asbestos failed, largely due to the expense of removing the asbestos from the canyon. "Captain" John Hance was said to be one of the Grand Canyon's most colorful characters, and it had been declared by one early visitor that "To see the canyon only and not to see Captain John Hance, is to miss half the show." Hance delighted in telling canyon stories to visitors, favoring the whopper of a tale over mere facts. With a straight face, Hance told travelers how he had dug the canyon himself, piling the excavated earth down near Flagstaff (a dirt pile now known as the San Francisco Peaks). Despite such questionable claims, Hance left a lasting legacy at the Grand Canyon, dying in 1919, the year the Grand Canyon became a National Park. Hance was the first person buried in what would become the Grand Canyon Pioneer Cemetery. Context_8 : Grand Canyon Airlines is an 14 CFR Part 135 air carrier headquartered on the grounds of Boulder City Airport, Boulder City, NV. Grand Canyon Airlines also has bases at Grand Canyon National Park Airport, AZ, and Page Airport, AZ. It operates sightseeing tours and scheduled passenger service over and around the Grand Canyon. Its headquarters and main operation center is Grand Canyon National Park Airport and Boulder City Airport, Nevada. Context_9 : Grand Canyon High School is a public high school located near the Grand Canyon in Grand Canyon Village, Arizona. It is the only high school in the Grand Canyon Unified School District. Context_10 : Grand Canyon is a 1958 American short documentary film directed by James Algar and produced by Walt Disney Productions. It was shown as a supplement during "Sleeping Beauty's" initial run, and it won an Academy Award at the 31st Academy Awards in 1959 for Best Short Subject (Live Action). It is also included as a bonus feature on the 1997 laserdisc, 2003 DVD, and 2008 DVD & Blu-ray releases of "Sleeping Beauty". fact_1 : The Bridge is a 2006 British-American documentary film by Eric Steel spanning one year of filming at the famed Golden Gate Bridge which crosses the Golden Gate entrance to San Francisco Bay, connecting the city of San Francisco, California to the Marin Headlands of Marin County, in 2004. fact_2 : Grand Canyon is a 1958 American short documentary film directed by James Algar and produced by Walt Disney Productions. Question: Are both The Bridge and Grand Canyon documentary films?
yes

Context_1 : Subcity Radio (formerly Sub City and SubCity) is a non-profit freeform radio station, arts collective and events promoter based at the University of Glasgow which is run by volunteers from the University and local community with the aim of providing an alternative to commercial and mainstream radio providers. It currently broadcasts online year round and until September 2009 also on temporary short-term FM Restricted Service Licence broadcasts. The station also hosts a large catalogue of audio for on-demand listening and podcasting, including recordings of the live stream, sessions, interviews, news and live recordings. Off-air, Subcity runs various events and club nights throughout the year, with previous venues including the Sub Club, Art School, Research Club and The Arches. Context_2 : Optimo (Espacio) ('Optimum Space') was a weekly Sunday-night club based in Glasgow, Scotland at the Sub Club on Jamaica Street, as well as a collective moniker for the night's resident DJ duo. Having run every week since it was founded in 1997, on Thursday 11 March 2010, it was announced on the official Facebook page that the weekly nights would come to an end on Sunday 25 April 2010. However, JD Twitch and JG Wilkes would continue to tour, promote and release music as Optimo. Context_3 : The IFFHS World's Best Club Coach is an association football award given annually, since 1996, to the most outstanding club coach as voted by the International Federation of Football History & Statistics (IFFHS). The votes, in 1996, were cast by IFFHS's editorial staff as well as experts from 89 countries spanning six different continents. Since then, the votes are now awarded by 81 experts and selected editorial offices from all of the continents. Context_4 : DJ Magazine (also known as DJ Mag) is a British monthly magazine dedicated to electronic dance music and DJs. Founded in 1991, the magazine is adapted for distribution in UK, USA, Spain, France, Italy, Latin America, China, South Korea, Indonesia and The Netherlands. Context_5 : The Sub Club is a club and music venue located at 22 Jamaica Street in Glasgow, Scotland. It opened 1 April 1987 and is the longest running underground dance club in the world. The 3500 sqft basement space can legally hold up to 410 people. In 2008 it was voted the 10th best club in the world by Resident Advisor(and 5th for atmosphere) and the 30th best club in the world by DJ Mag. In 2009 the club was placed 14th best in the world by DJ Mag. Context_6 : The Rhythm Room is a roots, blues, and concert club located in Phoenix, Arizona. It is the venue of nationally known acts on an almost nightly basis. In 2003 the club was named by the Phoenix New Times as the "Best Club for Blues" in its "Best of Phoenix" awards. In July of that same year the club hosted a live recording session by an 88-year-old Robert Lockwood, Jr. The resulting performance, "Legend Live", was released the following year by M.C. Records. A 2001 Hightone Records compilation, "Rhythm Room Blues (LIVE)", also captured live performances from the venue by R. L. Burnside, Kim Wilson, Sonny Rhodes, and others. Context_7 : Eddie Richards, also known as Evil Eddie, Jolly Roger, and Kode, is a British DJ. He was one of the first DJs to champion house music back in the mid 1980s and one of the UK's original mix DJs residing at London's Camden Palace, voted best club in the world in "Record Mirror". Context_8 : The FIBA Intercontinental Cup, commonly referred to as the FIBA World Cup for Champion Clubs, or the FIBA Club World Cup, is a professional basketball competition endorsed by FIBA, FIBA Americas and Euroleague Basketball Company. Historically, its purpose has been to gather the premier basketball clubs from each of the world's geographical zones, and to officially decide the best club of the world, which is officially crowned as the world club champion. The World Cup for Clubs has been contended mainly by the champions of the continents and/or world geographical regions that are of the highest basketball levels. Context_9 : Wheeling High School, or WHS, is a public four-year high school located in Wheeling, Illinois, a northwest suburb of Chicago, Illinois, in the United States. It is part of Township High School District 214, which also includes Buffalo Grove High School, Elk Grove High School, John Hersey High School, Prospect High School, and Rolling Meadows High School. The school serves the communities of Wheeling, Prospect Heights, Arlington Heights, and Buffalo Grove, along with a small portion of Mount Prospect. As of 2013, Wheeling High School is ranked the 817th best high school in the nation and the 30th best high school in Illinois, according to U.S. News & World Report. Context_10 : Vlastislav Marecek (15 April 1966 - 2 September 2007) was a Czech football coach. He was voted the best club coach of the Czech Republic in 2004/05 and 2005/06 seasons. During his career, he served as a coach of the junior national team, as well as of numerous Czech football clubs. In 2004-2006, he served as the head coach of FK Teplice, before leaving this job due to the worsening disease. In September 2007, he died of leukemia in a Prague hospital. fact_1 : In 2008 it was voted the 10th best club in the world by Resident Advisor(and 5th for atmosphere) and the 30th best club in the world by DJ Mag. fact_2 : Founded in 1991, the magazine is adapted for distribution in UK, USA, Spain, France, Italy, Latin America, China, South Korea, Indonesia and The Netherlands. Question: In 2008 Sub Club was voted the 30th best club in the world by a magazine founded in what year?
1991