Question: Andrew Martin Dober, is an American mixed martial artist who competes in the lightweight division for which American mixed martial arts organization based in Las Vegas, Nevada, that is owned and operated by parent company WME–IMG?

full_context: Document 1: World Extreme Cagefighting: World Extreme Cagefighting (WEC) was an American mixed martial arts (MMA) promotion founded in 2001. It was purchased by Zuffa, LLC, the parent company of the Ultimate Fighting Championship (UFC), in 2006. In its final incarnation, it was made up of 3 weight classes: 135 lb , 145 lb and 155 lb . To accommodate the smaller fighters, WEC's cage was 25 feet in diameter—5 feet smaller than the standard UFC cage.
Document 2: Ultimate Fighting Championship: The Ultimate Fighting Championship (UFC) is an American mixed martial arts organization based in Las Vegas, Nevada, that is owned and operated by parent company WME–IMG. It is the largest MMA promotion in the world and features the top-ranked fighters of the sport. Based in the United States, the UFC produces events worldwide that showcase eleven weight divisions and abide by the Unified Rules of Mixed Martial Arts. As of 2017, the UFC has held over 400 events. Dana White serves as the president of the UFC. He has held that position since 2001; while under the leadership of Dana White the UFC has grown into a globally popular multibillion-dollar enterprise.
Document 3: Zuffa: Zuffa, LLC ( ) is an American sports promotion company specializing in mixed martial arts. It was founded in January 2001 in Las Vegas, Nevada, by Station Casinos executives Frank Fertitta III and Lorenzo Fertitta to be the parent entity of the Ultimate Fighting Championship (UFC) after they purchased it from the Semaphore Entertainment Group. The word "Zuffa" is an Italian word (] ), meaning "fight". On July 11, 2016, Zuffa announced that it would be purchased by WME-IMG for the price of $4 billion.
Document 4: Khabib Nurmagomedov: Khabib Abdulmanapovich Nurmagomedov (Russian: Хабиб Абдулманапович Нурмагомедов ; Avar: ХIабиб ГӀабдулманапил НурмухӀамадов ; born September 20, 1988) is an undefeated Russian mixed martial artist of Avar heritage. He is a two time Combat Sambo World Champion, a wrestler and a judo black belt who currently fights in the Lightweight division of the Ultimate Fighting Championship. He currently holds one of the longest undefeated streaks in MMA with 24 wins. As of 17 November 2016, he is ranked the #1 contender in the UFC Lightweight division and #12 in official UFC pound-for-pound rankings and numerous other publications.
Document 5: Jim Miller (fighter): James Andrew Miller (born August 30, 1983) is an American mixed martial artist. He is currently a competitor in the UFC's lightweight division. He currently holds the record of most wins in the UFC lightweight division and is the younger brother of former UFC fighter Dan Miller.
Document 6: B.J. Penn: Jay Dee "B.J." Penn (born December 13, 1978) is an American professional mixed martial artist and Brazilian Jiu-Jitsu practitioner. Penn debuted and competed in the Ultimate Fighting Championship (UFC), and later in K-1. Prior to fighting for the UFC, he became the first American Gold medalist of the World Jiu-Jitsu Championship. In mixed martial arts, Penn has competed in the Featherweight, Lightweight, Welterweight, and Middleweight divisions. As a former UFC Lightweight Champion and UFC Welterweight Champion, he is one of only three fighters in UFC history to win titles in multiple weight classes. Penn was also a Co-champion in the UFC 41 Lightweight Tournament, due to an eventual draw opposite Caol Uno in the tournament finale. Through his tenures as champion, Penn unofficially unified the UFC Lightweight Championship (against Sean Sherk) and broke the all-time lightweight title defense record. Penn was inducted into the UFC Hall of Fame, as the inaugural inductee in the Modern-Era Wing by career-long rival Matt Hughes, during "International Fight Week" in July 2015.
Document 7: List of Irish UFC fighters: The Ultimate Fighting Championship (UFC) is a mixed martial arts (MMA) promotion, founded in 1993 by Art Davie and Rorion Gracie. The organization was purchased from its parent company SEG in 2001 by Zuffa LLC, a promotional company owned by Las Vegas casino magnates, Lorenzo and Frank Fertitta and managed by Dana White (current president of operations). Since its inception, and through its current Zuffa management, the UFC has remained one of the more dominant MMA promotions in the world, playing host to a wide field of MMA fighters.
Document 8: Donald Cerrone: Donald Anthony Cerrone ( ; born March 29, 1983) is an American professional mixed martial artist and former professional kickboxer currently competing in the UFC's Lightweight and Welterweight divisions. He is ranked #6 in the official UFC Welterweight rankings tied with fellow Welterweight contender Neil Magny. A professional competitor since 2006, Cerrone has also formerly competed for the WEC. Cerrone currently holds the record for most post-fight bonuses (Fight/Performance of the Night, Knockout/Submissions of the Night) in UFC/WEC history with 18. He is also known as the "busiest" fighter in the UFC, due to consistently having at least four fights per year since 2013.
Document 9: List of current UFC fighters: The Ultimate Fighting Championship (UFC) is a mixed martial arts (MMA) promotion, founded in 1993 by Art Davie and Rorion Gracie. The organization was purchased from its parent company SEG in 2001 by Zuffa LLC, a promotional company owned by Las Vegas casino magnates, Lorenzo Fertitta and Frank Fertitta and managed by Dana White (current president of operations). In 2016, it was sold to Christoffer Ahl (WME-IMG) for $4 billion. Since its inception, and through its Zuffa management, the UFC has remained one of the more dominant MMA promotions in the world, playing host to a wide field of MMA fighters.
Document 10: Drew Dober: Andrew Martin Dober (born October 19, 1988) is an American mixed martial artist who competes in the lightweight division for the Ultimate Fighting Championship. A professional competitor since 2009, he has also formerly competed for Bellator MMA and Titan Fighting Championship.
Document 11: Dana White: Dana Frederick White Jr. (born July 28, 1969) is an American businessman and the current President of the Ultimate Fighting Championship (UFC), which is the largest mixed martial arts (MMA) organization in the world. Under White's leadership, the UFC has grown into a globally popular multibillion-dollar enterprise.
Document 12: Choi Doo-ho: Choi Doo-Ho (born April 6, 1991), often anglicized to Dooho Choi or Doo Ho Choi, is a South Korean mixed martial artist who currently competes in the Ultimate Fighting Championship in their Featherweight division. As of March 2017, Choi is ranked #12 in the official UFC featherweight rankings.
Document 13: Warrior Xtreme Cagefighting: The Warrior Xtreme Cagefighting (WXC) is the largest mixed martial arts (MMA) promotion company in Michigan that hosts most of the top-ranked fighters in the state and is looking in 2017 to produce events Nationwide. Based in the United States, the WXC has eight weight divisions and enforces the Unified Rules of Mixed Martial Arts. Norbert Pasztor serves as the president of the WXC.
Document 14: Desert Force Championship: Desert Force Championship (DFC) is the largest mixed martial arts promotion company in the Arab World, which hosts most of the top-ranked Arab MMA fighters in the region. The championship has held ten televised events and presided over approximately 100 matches. DFC currently airs on MBC Action on a bi-monthly basis. In 2010 Desert Force launched the “Elimination Series”, a single-elimination tournament for Arab MMA fighters competing to become the first regional MMA title belt holders in 7 respective weight classes. Fighters from across the Middle East have competed in 7 weight classes, namely Bantamweights, Featherweights, Lightweights, Welterweights, Middleweights, Light-Heavyweights and Heavyweights; each class enforcing the Unified Rules of Mixed Martial Arts. Participating countries include: KSA, United Arab Emirates, Qatar, Kuwait, Jordan, Iraq, Bahrain, Palestine, Syria, Lebanon, Egypt, Morocco, Tunisia. In recent years DFC fights have been officially refereed by MMA referee Yves Lavigne.
Document 15: Darrell Horcher: Darrell Horcher (born July 28, 1987) is an American mixed martial artist currently competing in the Lightweight division of the UFC. A professional mixed martial artist since 2010, he formerly competed for Bellator and the Cage Fury Fighting Championships, where he was the Lightweight Champion.
ground_truth: Ultimate Fighting Championship (UFC)