Question: George Francis trained world champion Ugandan former professional boxer who competed from 1980 to 1991, and 1996 to 1999 and held the WBC super-welterweight title during what time period?

full_context: Document 1: John Mugabi: John Mugabi (born 4 March 1960) is a Ugandan former professional boxer who competed from 1980 to 1991, and 1996 to 1999. He held the WBC super-welterweight title from 1989 to 1990, and challenged twice for world titles at middleweight, including the undisputed championship. Mugabi was part of an exceptionally talented group of light-middleweights and middleweights during a "golden era" of the 1980s which included Marvin Hagler, Sugar Ray Leonard, Thomas Hearns, Wilfred Benítez, Davey Moore, and Roberto Durán. As an amateur, Mugabi won a silver medal in the welterweight division at the 1980 Summer Olympics, and was the only medallist for Uganda at the event.
Document 2: Sylvester Mittee: Sylvester "The Master Blaster" Mittee ( (1956--) 29 1956 (age 61 ) ) is a Saint Lucian/British amateur lightweight and professional light welter/welter/light middleweight boxer of the 1970s and '80s who as an amateur won the 1973 Amateur Boxing Association of England (ABAE) Junior Class-B title boxing out of Crown and Manor ABC , Hoxton, London, won the 1976 Amateur Boxing Association of England (ABAE) lightweight title, against Thomas McCallum (Sparta BC), boxing out of Repton Amateur Boxing Club , Bethnal Green, London, and represented Great Britain as a lightweight in the Boxing at the 1976 Summer Olympics in Montreal, Quebec, Canada, losing to eventual silver medal winner Simion Cuţov of Romania, and as a professional won the British Boxing Board of Control (BBBofC) Southern (England) Area light welterweight title, BBBofC British welterweight title and Commonwealth welterweight title, and was a challenger for the BBBofC British light welterweight title against Clinton McKenzie, and European Boxing Union (EBU) welterweight title against Lloyd Honeyghan, his professional fighting weight varied from 139 lb , i.e. light welterweight to 151+1/2 lb , i.e. light middleweight.
Document 3: Dean Francis: Dean "Star" Francis ( (1974--) 23 1974 (age (2017)-(1974)-((11)<(01)or(11)==(01)and(30)<(23)) ) ) is an English professional super middle/light heavy/cruiserweight boxer of the 1990s, 2000s and 2010s who has won the British Boxing Board of Control (BBBofC) British super middleweight, BBBofC English cruiserweight title, European Boxing Union (EBU) super middleweight title, World Boxing Organization (WBO) Inter-Continental super middleweight title, International Boxing Organization (IBO) Inter-Continental light heavyweight title, BBBofC British light heavyweight title, British Masters light-heavy title, and Commonwealth super middleweight title, and was a challenger for the World Boxing Council (WBC) International super middleweight title against Jaffa Ballogou, BBBofC British super middleweight title against Matthew Barney, his professional fighting weight has varied from 167 lb , i.e. super middleweight to 181 lb , i.e. cruiserweight.
Document 4: Andrew Murray (Guyanese boxer): Andrew "The Eagle" Murray (1 July 1971 — 26 January 2002 (aged 30)) born in Georgetown was a Guyanese professional welter/light middle/middleweight boxer of the 1990s and 2000s who won the World Boxing Council (WBC) FECARBOX welterweight title, World Boxing Association (WBA) Fedelatin welterweight title, and Commonwealth welterweight title, and was a challenger for the World Boxing Association (WBA) World welterweight title against Ike Quartey, World Boxing Union (WBU) welterweight title against Michele Piccirillo, and World Boxing Organization (WBO) North American Boxing Organization (NABO) light middleweight title against Fathi Missaoui, his professional fighting weight varied from 145 lb , i.e. welterweight to 156 lb , i.e. middleweight. Andrew Murray was trained by Emanuel Steward, and was the Vice-President of the Guyana Amateur Boxing Board and was training several young boxers, and he had coached Hugo Lewis to the Guyanese super featherweight title on 26 December 2001. Andrew Murray died in a traffic collision on the Soesdyke-Linden Highway early in the morning of Sunday 27 January 2002, he had been in Linden promoting a fight card and was on his way back to Georgetown.
Document 5: Sugar Ray Leonard: Ray Charles Leonard (born May 17, 1956), best known as "Sugar" Ray Leonard, is an American former professional boxer, motivational speaker, and occasional actor. Often regarded as one of the greatest boxers of all time, he competed from 1977 to 1997, winning world titles in five weight divisions; the lineal championship in three weight divisions; as well as the undisputed welterweight title. Leonard was part of "The Fabulous Four", a group of boxers who all fought each other throughout the 1980s, consisting of himself, Roberto Durán, Thomas Hearns and Marvin Hagler.
Document 6: Frank Roberts (boxer): Francis Roy "Frank" Roberts (5 March 1945 – 7 February 2011) was an Indigenous Australian boxer who competed at the 1964 Tokyo Olympics in the welterweight division. 'Honest Frank', as he was known, was the first Indigenous Australian Olympian, and was also the youngest boxer on the Australian boxing team. He resided in Armidale, New South Wales, and gave boxing lessons to local youths, until his death from a heart attack in February 2011.
Document 7: Justin Juuko: Justin "The Destroyer" Juuko (born 26 December 1972 in Masaka) is a Ugandan amateur light flyweight and professional feather/super feather/light/light welter/welterweight boxer of the 1990s, 2000s and 2010s who as an amateur won the gold medal at light flyweight in the Boxing at the 1990 Commonwealth Games in Auckland, New Zealand, and as a professional won the World Boxing Council (WBC) International super featherweight title, World Boxing Council (WBC) FECARBOX super featherweight title, African Boxing Union (ABU) light welterweight title, North American Boxing Federation (NABF) super featherweight title, and Commonwealth super featherweight title, and was a challenger for the interim World Boxing Association (WBA) World super featherweight title against Antonio Hernandez, World Boxing Council (WBC) super featherweight title against Floyd Mayweather, Jr., International Boxing Association (IBA) super featherweight title against Diego Corrales, World Boxing Union (WBU) super featherweight title against Michael Gomez, International Boxing Association (IBA) lightweight title against Rustam Nugaev, Global Boxing Union (GBU) light welterweight title against Gábor Vető, his professional fighting weight varied from 125 lb , i.e. featherweight to 143 lb , i.e. welterweight.
Document 8: Frank Bruno: Franklin Roy "Frank" Bruno, {'1': ", '2': ", '3': ", '4': "} (born 16 November 1961) is a British former professional boxer who competed from 1982 to 1996. Bruno had a highly publicised and extremely eventful career. The pinnacle of his boxing career was winning the WBC heavyweight title, in what was his fourth world championship challenge. He also held the European heavyweight title earlier in his career. Bruno was one of the most well-loved and recognisable boxers in British history, and faced multiple top-rated heavyweights during his career including two bouts with Mike Tyson and a domestic clash against Lennox Lewis. He won the WBC title in 1995 after defeating Oliver McCall at a packed Wembley Stadium. Bruno was known for his excellent punching power: he won 40 of his 45 bouts and 38 by knockout, giving him a 95% knockout rate from the fights he won; his overall knockout percentage is 84.44%. Like Henry Cooper before him, Bruno has remained a popular celebrity with the British public following his retirement from boxing.
Document 9: Mickey Hughes (boxer): Mickey Hughes (born 13 June 1962 in London), is an English amateur welterweight and professional welter/light middleweight boxer of the 1980s, and 1990s who as an amateur won the 1984 Amateur Boxing Association of England welterweight title, against Robert Thomas (Gloucester ABC), boxing out of St Pancras ABC , and represented Great Britain at welterweight in Boxing at the 1984 Summer Olympics in Los Angeles, United States, defeating Paul Rasamimanana of Madagascar, and losing to Rudel Obreja of Romania, and as a professional won the British Boxing Board of Control (BBBofC) British light middleweight, and Commonwealth light middleweight title, and was a challenger for the BBBofC Southern Area welterweight title against Trevor Smith, Commonwealth welterweight title against Donovan Boucher, BBBofC British welterweight title against Del Bryan, and World Boxing Association (WBA) Inter-Continental light middleweight title against Shaun Cummins, his professional fighting weight varied from 146 lb , i.e. welterweight to 154 lb , i.e. light middleweight.
Document 10: Mike McCallum: Mike McCallum (born 7 December 1956) is a Jamaican former professional boxer who competed from 1981 to 1997. He is a three-weight world champion, having held the WBA super welterweight title from 1984 to 1988; the WBA middleweight title from 1989 to 1991; and the WBC light heavyweight title from 1994 to 1995.
Document 11: George Chuvalo: George Louis Chuvalo, CM (born September 12, 1937) is a retired Canadian professional boxer who was a five-time Canadian heavyweight champion, and two-time world heavyweight title challenger. Chuvalo, who is considered by many to have one of the best chins in boxing history, was never knocked down in his amateur career or his 93-fight professional career and was ranked #4 on ESPN's greatest chin in boxing history list. Chuvalo lost to Hall of Fame heavyweights such as Floyd Patterson, Muhammad Ali, Joe Frazier and George Foreman, but was credited for his spirited performances. He did defeat top contenders such as Yvon Durelle, Doug Jones, Jerry Quarry and Cleveland Williams. He fought for the world title twice, losing a controversial decision to Ernie Terrell and another decision in his first fight with Ali.
Document 12: Sugar Ray Seales: "Sugar" Ray Seales, (born September 4, 1952) was the only American boxer to win a gold medal in the 1972 Summer Olympics. As a professional, he fought middleweight champion Marvin Hagler three times. He is also the former NABF and USBA middleweight champion.
Document 13: George Francis (trainer): George Francis ("c." 1929–2002) was a British boxing athletic trainer who trained world champion boxers such as Frank Bruno, John Conteh, John Mugabi, and Cornelius Boza Edwards. He was found hanged at his home in London, apparently having committed suicide. He was 73.
Document 14: Meldrick Taylor: Meldrick Taylor (born October 19, 1966) is an American former professional boxer who competed from 1984 to 2002. He is a two-weight world champion, having held the IBF junior welterweight title from 1988 to 1990, and the WBA welterweight title from 1991 to 1992. As an amateur, Taylor won a gold medal in the featherweight division at the 1984 Summer Olympics.
Document 15: George Foreman: George Edward Foreman (born January 10, 1949) is an American former professional boxer who competed from 1969 to 1977, and from 1987 to 1997. Nicknamed "Big George", he is a two-time world heavyweight champion and an Olympic gold medalist. Outside the sport he is an ordained minister, author, and entrepreneur.
ground_truth: from 1989 to 1990