Question: Which Iowa State University wrestling coach beat Elmadi Zhabrailov at the Olympics?

full_context: Document 1: Elmadi Zhabrailov: Elmadi Zaynaydiyevich Zhabrailov (Russian: Эльмади Зайнайдиевич Жабраилов ; born 6 September 1965) is a freestyle wrestler of Chechen origin, who competed for the Soviet Union and then Kazakhstan. His elder brother Lukman prepared him for the 1992 Olympics, where Elmadi won a silver medal, losing the final bout to Kevin Jackson via a controversial decision. At the next Olympics the brothers competed against each other, and Elmadi won, but placed only sixth overall.
Document 2: Zaza Tkeshelashvili: Zaza "Grom" Tkeshelashvili (born March 19, 1965) is a Georgian retired Freestyle wrestling Olympic competitor (100 kg) for Georgia in 1996 Olympic Games Atlanta and mixed martial artist. He formerly competed in the Heavyweight (MMA) division, most of which he fought with Fighting Network RINGS where he was known as Zaza Grom. He lost his last fight at Rings Lithuania – Bushido Rings 2 against Volk Han on August 5, 2001. He holds notable wins over Volk Han and Travis Fulton, and has fought Bobby Hoffman and Renato Sobral. His brother Koba Tkeshelashvili is also mixed martial artist and has competed in RINGS.
Document 3: Ilham Zakiyev: Ilham Azizaga oglu Zakiyev (Azerbaijani: "İlham Zəkiyev" , born 3 March 1980, Sumgayit) is an Azerbaijani blind judoka. He began studying judo when he was 11 years of age. In 1998, when he was 18, he went to serve in Azerbaijani army in the Aşağı Əbdürrəhmanlı village of Fizuli Rayon. He served on the frontline of the conflict zone. On 4 February 1999, he was wounded by a bullet to the head by an Armenian sniper, while on a combat mission. The bullet passed through the entire head, entering from the left and exiting via the right temple. As a result, Zakiyev has completely lost his eyesight. After a long rehabilitation he returned to the sportç but as a Paralympian. He is the holder of a 6-dan black belt.
Document 4: Kevin Jackson: Kevin Andre Jackson (born November 25, 1964 in Highland Falls, New York) is an American Olympic gold medalist wrestler and former professional mixed martial arts competitor. After retiring from active competition he became the head wrestling coach at Iowa State University, having been hired in 2009 after Cael Sanderson moved to Penn State University. Before joining Iowa State, Jackson was a four-time All-American, first for Louisiana State University and then for Iowa State, where he was the NCAA runner-up in 1987. He stepped down from his position in 2017.
Document 5: Steve Fraser: Steve Fraser was the 1984 Olympic Gold Medalist in Greco-Roman wrestling in the 198 lb weight class. A native of Hazel Park, Michigan, Fraser was a Michigan High School Athletic Association (MHSAA) state wrestling champion and later an All-American in wrestling at the University of Michigan. Fraser's gold medal was the first Olympic medal in Greco-Roman wrestling followed the next night by Jeff Blatnick who won a second gold medal for the United States Olympic team. Fraser has served as coach of the US Greco Roman team since 1997. 2000 Olympic Gold medalist Rulon Gardner credits Fraser's instruction as a large part of his wrestling success. The year Fraser competed the USA won 9 Gold Medals in wrestling, the largest in a single Olympics since 1896.
Document 6: Cael Sanderson: Cael Norman Sanderson ( ; born June 20, 1979) is an American college wrestling icon who rose to prominence while at Iowa State University. He is currently the head wrestling coach of Penn State University. He is considered one of the best American amateur wrestlers in recent history. A 2004 Olympic champion in Athens, Greece, he went undefeated in four years of college wrestling at Iowa State University (159–0), winning four consecutive NCAA titles (1999–2002). He is the only wrestler in NCAA Division I history to go undefeated in official matches with more than 100 wins. "Sports Illustrated" named his college career as the second most impressive college sports feat behind the setting of four world records by Jesse Owens in a single hour at the 1935 Big Ten track and field conference championship meet.
Document 7: Iowa State Cyclones wrestling: The Iowa State Cyclones wrestling team represents Iowa State University (ISU) and competes in the Big 12 Conference of NCAA Division I. The team is coached by Kevin Dresser. The Cyclones host their home meets at Hilton Coliseum on Iowa State's campus. Iowa State became the first collegiate wrestling program to reach 1000 dual wins on February 7, 2010.
Document 8: Kurt Angle: Kurt Steven Angle (born December 9, 1968) is an American professional wrestler, actor and retired amateur wrestler currently signed to WWE and performing as the on-screen general manager for the Raw brand. While a student at Clarion University of Pennsylvania, Angle won numerous accolades, including being a two-time National Collegiate Athletic Association (NCAA) Division I Heavyweight Wrestling Champion. After graduating college, Angle won a gold medal in freestyle wrestling at the 1995 World Wrestling Championships. He then won a freestyle wrestling gold medal at the 1996 Summer Olympics. Angle is one of four people to complete an amateur wrestling Grand Slam (Junior Nationals, NCAA, World Championships, and Olympics). In 2006, he was named by USA Wrestling as the greatest shoot wrestler ever and one of the top 15 college wrestlers of all time. He was inducted into the International Sports Hall of Fame in 2016 for his amateur accomplishments.
Document 9: Magomedmurad Gadzhiev: Magomedrasul Saidpashievich Gadzhiev (Russian: Магомедмурад Саидпашаевич Гаджиев ; born February 15, 1988 in Dagestan) is a Russian Naturalized Polish freestyle wrestler of Dargin heritage. International Master of Sports in Freestyle Wrestling. He is bronze medalist of 2010 Russian Freestyle Wrestling Nationals. At 2015 World Wrestling Championships in the second round he lost to World Champion Frank Chamizo (3-4) European Games 2015 ruuner-up, who competed in the men's freestyle 70 kg category at the 2015 European Games and won the silver medal. Golden Grand prix Ivan Yarygin 2010 champion, bronze medalist in 2009 and 2011, European Championships 2010 runner-up, Ramzan Kadyrov Cup 3rd 2010 and World Cup 2011 winner. Gadzhiev competed at Olympics 2016, but he lost to Frank Molinaro in the qualifications.
Document 10: Abdusalam Gadisov: Abdusalam Mamatkhanovich Gadisov (born 26 March 1989 in Dagestan) is an Avar – Dagestani born-Russian freestyle wrestler. He competed in the freestyle 96 kg event at the 2012 Summer Olympics; after defeating Taimuraz Tigiyev in the qualifications, he was eliminated by Reza Yazdani in the 1/8 finals. In 2014 he became World freestyle wrestling champion in 97 kg, and runner-up in 2015. In 2012 he became Russian national champion in final the match he defeated Olympic Champion and five time World Champion Khadzhimurat Gatsalov. He won Russian National Freestyle Wrestling Championships 2015 again and also won in 2016. Gadisov took the silver medal in the 2015 World Freestyle Wrestlng Championships, losing in the finals to Kyle Snyder, who became the youngest World Wrestling Champion in US history.He is devout Sunni Muslim
Document 11: Zeke Jones: Larry Lee "Zeke" Jones (born December 2, 1966) is an American wrestler who won a silver medal at the 1992 Summer Olympics in Barcelona, a world championship in Varna, Bulgaria, in 1991, and was the former freestyle head coach at USA Wrestling. He is currently the head coach of the Arizona State University Wrestling team as of April, 2014. He was a six-time national freestyle champion, four-time World Cup champion, Pan American Games champion, and received the "World's Most Technical Wrestler Award" awarded by FILA, the international governing body for the sport. In college, he was a three-time All-American for Arizona State University and competed on the 1988 NCAA Championship team, coached by famed Bobby Douglas. After college, he wrestled on two world championships teams with the United States wrestling team. In 2005, he was inducted into the National Wrestling Hall of Fame.
Document 12: Jamill Kelly: Larry Jamill Kelly (born October 25, 1977) is an American freestyle wrestler. He represented the United States at the 2004 Summer Olympic Games where he earned a silver medal. Up until August 2010 he was the head coach of Dallas Dynamite Wrestling Club in Dallas, Texas. In 2015, he became a guest wrestling coach for Daniel Cormier, Luke Rockhold and Cain Velasquez, all from the American Kickboxing Academy.
Document 13: Rizvan Geliskhanov: Rizvan Geliskhanov (Russian: Ризван Гелисханов , born 1963) is a retired Soviet super-heavyweight weightlifter of Chechen origin. He won a silver medal at the 1989 World Championships and a bronze at the 1990 European Championships. Domestically he held the Soviet title in 1987; in 1988 he won the snatch and clean and jerk events, but placed second in the total.
Document 14: Lukman Zhabrailov: Lukman Zaynaydiyevich Zhabrailov (Russian: Лукман Зайнайдиевич Жабраилов , born April 27, 1962) is a retired freestyle wrestler of Chechen origin, who competed for the Soviet Union and then for Moldova. He won a world tile in 1994, a world cup in 1987, and two medals at European championships, in 1984 and 1994. At the 1996 Summer Olympics he competed against his younger brother Elmadi and lost 8-10. Lukman earlier prepared Elmadi for the 1992 Olympics, and both Lukman and Elmadi were earlier coached by their brother Ruslan.
Document 15: Jim Zalesky: Jim Zalesky is an American college wrestling coach and is currently the head wrestling coach for the Oregon State Beavers and a member of the National Wrestling Hall of Fame. Prior to joining the Beavers, he was the coach of the University of Iowa wrestling team from 1998–2006. At Iowa, he succeeded Dan Gable as head coach, under whom he was a three-time NCAA champion. He guided the Hawkeyes to NCAA team championships in 1998, 1999, and 2000.
ground_truth: Kevin Jackson