Question: Guy Walters competed against which former professional boxer that is a two-weight world champion?

full_context: Document 1: Crawford Ashley: Crawford "Chilling" Ashley (born Gary Crawford, 20 May 1964 in Leeds is an English professional super middle/light heavy/cruiser/heavyweight boxer of the 1980s, '90s and 2000s, who won the British Boxing Board of Control (BBBofC) Central Area light heavyweight title, BBBofC British light heavyweight title, European Boxing Union (EBU) light heavyweight title (twice), and Commonwealth light heavyweight title (twice), drew with Yawe Davis for the vacant European Boxing Union (EBU) light heavyweight title, and was a challenger for the European Boxing Union (EBU) light heavyweight title against Graciano Rocchigiani, World Boxing Association (WBA) World super middleweight title against Michael Nunn, World Boxing Association (WBA) World light heavyweight title against Virgil Hill, and World Boxing Union (WBU) cruiserweight title against Sebastiaan Rothmann, his professional fighting weight varied from 163 lb , i.e. super middleweight to 211 lb , i.e. heavyweight.
Document 2: Virgil Hill: Virgil Eugene Hill (born January 18, 1964) is an American former professional boxer who competed from 1984 to 2007, and in 2015. He is a two-weight world champion, having held the WBA light heavyweight title twice, from 1987 to 1997; the IBF and lineal light heavyweight titles from 1996 to 1997; and the WBA cruiserweight title twice, from 2000 to 2002 and 2006 to 2007. As an amateur, Hill won a silver medal in the middleweight division at the 1984 Summer Olympics. In 2013, he was inducted into the International Boxing Hall of Fame.
Document 3: Andre Thysse: Andre Thysse ( (1968--) 07 1968 (age (2017)-(1968)-((11)<(02)or(11)==(02)and(30)<(07)) ) ) born in Germiston, is a South African professional super middle/light heavyweight boxer of the 1990s and 2000s who won the Gauteng super middleweight Title, South African super middleweight title, and Commonwealth super middleweight title, and was a challenger for the International Boxing Organization (IBO) super middleweight title against Brian Magee, World Boxing Council (WBC) super middleweight title against Markus Beyer, World Boxing Council (WBC) International super middleweight title against Mikkel Kessler, WBC International super middleweight title against Jürgen Brähmer, World Boxing Council (WBC) Continental Americas super middleweight title against Lucian Bute, World Boxing Council (WBC) International light heavyweight title against Adrian Diaconu, and International Boxing Federation (IBF) Australasian super middleweight title against Sakio Bika, his professional fighting weight varied from 163+3/4 lb , i.e. super middleweight to 175 lb , i.e. light heavyweight.
Document 4: Guy Waters: Guy "Arc Angel" Waters ( (1964--) 25 1964 (age (2017)-(1964)-((11)<(01)or(11)==(01)and(30)<(25)) ) ) is an Australian professional welter/light middle/middle/super middle/light heavy/cruiserweight boxer of the 1980s, 1990s and 2000s who won the New South Wales State (Australia) light heavyweight title, Australian light heavyweight title, Oriental and Pacific Boxing Federation (OPBF) light heavyweight title, Australasian Light Heavyweight Title, World Boxing Federation (WBF) light heavyweight title, International Boxing Federation (IBF) Pan Pacific super middleweight title, Oriental and Pacific Boxing Federation (OPBF) super middleweight title, and Commonwealth light heavyweight title, and was a challenger for the WBC light heavyweight title against Dennis Andries, World Boxing Association (WBA) World light heavyweight title against Virgil Hill, World Boxing Council (WBC) cruiserweight title against Juan Carlos Gómez, and Commonwealth super middleweight title against David Starie, his professional fighting weight varied from 167+1/2 lb , i.e. super middleweight to 185+1/4 lb , i.e. cruiserweight.
Document 5: 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 6: Andre Thysse: Andre Thysse ( (1968--) 07 1968 (age (2017)-(1968)-((11)<(02)or(11)==(02)and(30)<(07)) ) ) born in Germiston, is a South African professional super middle/light heavyweight boxer of the 1990s and 2000s who won the Gauteng super middleweight Title, South African super middleweight title, and Commonwealth super middleweight title, and was a challenger for the International Boxing Organization (IBO) super middleweight title against Brian Magee, World Boxing Council (WBC) super middleweight title against Markus Beyer, World Boxing Council (WBC) International super middleweight title against Mikkel Kessler, WBC International super middleweight title against Jürgen Brähmer, World Boxing Council (WBC) Continental Americas super middleweight title against Lucian Bute, World Boxing Council (WBC) International light heavyweight title against Adrian Diaconu, and International Boxing Federation (IBF) Australasian super middleweight title against Sakio Bika, his professional fighting weight varied from 163+3/4 lb , i.e. super middleweight to 175 lb , i.e. light heavyweight.
Document 7: Lou Cafaro: Lou Cafaro ( (1962--) 05 1962 (age (2017)-(1962)-((11)<(02)or(11)==(02)and(30)<(05)) ) ) born Luciano Cafaro is an Australian professional welter/light middle/middle/super middle/light heavy/cruiserweight boxer of the 1980s and '90s who won the Australian middleweight title, Australian super middleweight title, Oriental and Pacific Boxing Federation (OPBF) super middleweight title, and Commonwealth super middleweight title, and was a challenger for the World Boxing Council (WBC) International super middleweight title against Kid Milo, his professional fighting weight varied from 156+1/2 lb , i.e. welterweight to 175+1/4 lb , i.e. cruiserweight.
Document 8: Andre Ward: Andre Michael Ward (born February 23, 1984) is an American former professional boxer who competed from 2004 to 2017. He retired with an undefeated record and held eight world titles in two weight classes, including the unified WBA (Super), WBC, "Ring" magazine, and lineal super middleweight titles between 2009 and 2015; and the unified WBA (Undisputed), IBF, WBO, and "Ring" light heavyweight titles between 2016 and 2017. During his reign as light heavyweight champion, Ward was ranked as the world's best active boxer, pound for pound, by "The Ring" magazine and the Transnational Boxing Rankings Board (TBRB), as well as the world's best active boxer in the division by "The Ring", the TBRB, and BoxRec.
Document 9: Roy Jones Jr.: Roy Levesta Jones Jr. (born January 16, 1969) is an American professional boxer, boxing commentator, boxing trainer, rapper, and actor who holds dual American and Russian citizenship. He is a six-time former world champion in four weight classes, having held titles at middleweight, super middleweight, light heavyweight, and heavyweight; and is the only boxer in history to start his professional career at light middleweight and go on to win a heavyweight title. As an amateur he represented the United States at the 1988 Summer Olympics, winning a silver medal in the light middleweight division.
Document 10: Andy Holligan: Andy Holligan (born 6 June 1967 in Liverpool) is an English amateur light welterweight and professional light welter/welter/light middleweight boxer of the 1980s and 1990s, who as an amateur won the 1987 Amateur Boxing Association of England (ABAE) light welterweight title, against Richard Bryan (Fitzroy Lodge ABC (London)), boxing out of Rotunda ABC (Liverpool), and as a professional won the British Boxing Board of Control (BBBofC) British light welterweight title (twice), and Commonwealth light welterweight title (twice), and was a challenger for the World Boxing Council (WBC) light welterweight title against Julio César Chávez, and World Boxing Union (WBU) light welterweight title against Shea Neary, his professional fighting weight varied from 139 lb , i.e. light welterweight to 153 lb , i.e. light middleweight.
Document 11: Bruce Scott (boxer): Bruce "Lionheart" Scott ( (1969--) 16 1969 (age (2017)-(1969)-((11)<(08)or(11)==(08)and(30)<(16)) ) ) is a Jamaican/British professional light heavy/cruiserweight boxer of the 1990s and 2000s, who won the British Boxing Board of Control (BBBofC) Southern Area cruiserweight title, BBBofC British cruiserweight title, and Commonwealth cruiserweight title (twice), and was a challenger for the Commonwealth light heavyweight title against Nicky Piper, World Boxing Organization (WBO) cruiserweight title against Johnny Nelson, World Boxing Council (WBC) cruiserweight title against Juan Carlos Gómez, Commonwealth cruiserweight title against Adam Watt, and World Boxing Union (WBU) cruiserweight title against Enzo Maccarinelli, his professional fighting weight varied from 173 lb , i.e. light heavyweight to 199+1/4 lb , i.e. cruiserweight.
Document 12: Dariusz Michalczewski: Dariusz Michalczewski (born 5 May 1968) is a Polish-German former professional boxer who competed from 1991 to 2005. He is a two-weight world champion, having held multiple world titles at light-heavyweight, including the WBO title from 1994 to 2003; the unified WBA, IBF, and lineal titles in 1997; and the WBO junior-heavyweight title from 1994 to 1995.
Document 13: Scott Dixon (boxer): "Super" Scott Dixon ( (1976--) 28 1976 (age (2017)-(1976)-((11)<(09)or(11)==(09)and(30)<(28)) ) ) born in Hamilton is a Scottish professional feather/super feather/light/light welter/welter/light middle/middle/super middleweight boxer of the 1990s, 2000s and 2010s, who won the British Boxing Board of Control (BBBofC) Scottish Area welterweight title, World Boxing Board (WBB) welterweight title, World Boxing Union (German Version) super middleweight title, and Commonwealth welterweight title, and was a challenger for the World Athletic Association (WAA) welterweight title against Michael Carruth, BBBofC British welterweight title against Derek Roche, World Boxing Federation (WBF) light middleweight title against Steve Roberts, World Boxing Organization (WBO) Inter-Continental light middleweight title against Anthony Farnell, and World Boxing Union (WBU) light middleweight title against Mehrdad Takalobigashi, his professional fighting weight varied from 125 lb , i.e. featherweight to 167+1/2 lb , i.e. Super middleweight.
Document 14: Mike Tyson: Michael Gerard Tyson ( ; born June 30, 1966) is an American former professional boxer who competed from 1985 to 2005. He reigned as the undisputed world heavyweight champion and holds the record as the youngest boxer to win a heavyweight title at 20 years, 4 months and 22 days old. Tyson won his first 19 professional fights by knockout, 12 of them in the first round. He won the WBC title in 1986 after stopping Trevor Berbick in two rounds, and added the WBA and IBF titles after defeating James Smith and Tony Tucker in 1987. This made Tyson the first heavyweight boxer to simultaneously hold the WBA, WBC and IBF titles, and the only heavyweight to successively unify them.
Document 15: Guy Waters: Guy "Arc Angel" Waters ( (1964--) 25 1964 (age (2017)-(1964)-((11)<(01)or(11)==(01)and(30)<(25)) ) ) is an Australian professional welter/light middle/middle/super middle/light heavy/cruiserweight boxer of the 1980s, 1990s and 2000s who won the New South Wales State (Australia) light heavyweight title, Australian light heavyweight title, Oriental and Pacific Boxing Federation (OPBF) light heavyweight title, Australasian Light Heavyweight Title, World Boxing Federation (WBF) light heavyweight title, International Boxing Federation (IBF) Pan Pacific super middleweight title, Oriental and Pacific Boxing Federation (OPBF) super middleweight title, and Commonwealth light heavyweight title, and was a challenger for the WBC light heavyweight title against Dennis Andries, World Boxing Association (WBA) World light heavyweight title against Virgil Hill, World Boxing Council (WBC) cruiserweight title against Juan Carlos Gómez, and Commonwealth super middleweight title against David Starie, his professional fighting weight varied from 167+1/2 lb , i.e. super middleweight to 185+1/4 lb , i.e. cruiserweight.
ground_truth: Virgil Hill