Question: Joan Guzmán was a Dominican former professional boxer, and two-weight world champion, from which sanctioning boxing organization?

Context articles: Nedal Hussein
Gerry Peñalosa
Daniel Santos (boxer)
Ricardo Mayorga
Carl Frampton
World Boxing Organization
Iván Calderón (boxer)
Joan Guzmán
Kenny Galarza
Joe Calzaghe

Nedal "Skinny" Hussein (born 1 December 1977) is an Australian professional bantam/super bantam/feather/super feather/Lightweight boxer of the 1990s and 2000s who won the Australian super bantamweight title, Australian bantamweight title, International Boxing Federation (IBF) Pan Pacific featherweight title, World Boxing Federation (WBF) featherweight title, World Boxing Union (WBU) super bantamweight title, World Boxing Organization (WBO) Asia Pacific super featherweight title, International Boxing Federation (IBF) Pan Pacific super featherweight title, International Boxing Organization (IBO) Inter-Continental super featherweight title, and Commonwealth super bantamweight title, and was a challenger for the World Boxing Council (WBC) International super bantamweight title against Manny Pacquiao, World Boxing Council (WBC) super bantamweight title against Óscar Larios, World Boxing Organization (WBO) featherweight title against Scott Harrison, Oriental and Pacific Boxing Federation (OPBF) featherweight title against Hiroyuki Enoki, and Oriental and Pacific Boxing Federation (OPBF) super featherweight title against Takashi Uchiyama, his professional fighting weight varied from 117+1/4 lb , i.e. bantamweight to 132+3/4 lb , i.e. lightweight.
Geronimo "Gerry" Peñalosa (born August 7, 1972) is a Filipino former professional boxer who competed from 1989 to 2010.
 He is a two-weight world champion, having held the WBC and lineal super flyweight titles from 1997 to 1998, and the WBO bantamweight title from 2007 to 2009.
 Originally from San Carlos City, Peñalosa currently resides in Manila.
 He was trained mainly by Freddie Roach, and went on to become a boxing trainer himself after retirement.
 Peñalosa's older brother, Dodie Boy Peñalosa, is also a former boxer and world champion.
Daniel Santos Peña (born October 10, 1975) is a former professional boxer who competed from 1996 to 2009.
 As an amateur Santos represented Puerto Rico in international events, including the 1990 and 1992 Junior World Championships, Pan American Boxing Tournament, Goodwill Games, 1995 Pan American Games and the 1996 Summer Olympics, where he won a bronze medal in the Welterweight Division.
 Santos debuted as a professional in 1996.
 Santos won the World Boxing Organization Welterweight championship on May 6, 2000.
 On March 16, 2002 he vacated the welterweight division's championship in order to compete against Yori Boy Campas for the vacant World Boxing Organization Light middleweight championship.
 Santos defended this championship on four occasions, against Mehrdud Takaloo (in a fight where he won the World Boxing Union Light middleweight championship), Fulgencio Zúñiga, Michael Lerma and Antonio Margarito before losing it to Sergiy Dzindziruk by unanimous decision in a fight that took place on December 3, 2005.
 On July 11, 2008, Santos won his third professional championship, knocking out Joachim Alcine in six rounds to win the World Boxing Association's light middleweight title.
Ricardo Antonio Mayorga Perez (born October 3, 1973), best known as Ricardo Mayorga, is a Nicaraguan professional boxer and former mixed martial artist.
 In boxing he is a former two-weight world champion, having held the unified WBA (Super), WBC, "Ring" magazine, and lineal welterweight titles in 2003, and the WBC super welterweight title from 2005 to 2006.
 Mayorga first became well-known to boxing fans upon being featured on the cover of "The Ring"' s December 2003 issue, entitled ""The craziest man in the sport: Mayorga lights up boxing.""
 He has since maintained this infamous reputation with his relentless trash-talk in the build-up to most of his fights, as well as his smoking and drinking habits outside the ring.
Carl Frampton, {'1': ", '2': ", '3': ", '4': "} (born 21 February 1987) is a professional boxer from Northern Ireland.
 He is a former two-weight world champion, having held the unified WBA (Super) and IBF super-bantamweight titles between 2014 and 2016, and the WBA (Super) featherweight title from 2016 to 2017.
 At regional level he held the European and Commonwealth super-bantamweight titles between 2011 and 2014.
 By winning the featherweight world title in 2016, Frampton became the first boxer from Northern Ireland and only the second boxer from Ireland to have held world titles in two weight classes (the first being Steve Collins).
 This also earned him Fighter of the Year awards by "The Ring" magazine, the Boxing Writers Association of America, and ESPN.
The World Boxing Organization (WBO) is a sanctioning organization which recognizes professional boxing world champions.
 It is recognized by the International Boxing Hall of Fame (IBHOF) as one of the four major world championship groups, alongside the World Boxing Association (WBA), World Boxing Council (WBC), and International Boxing Federation (IBF).
 The WBO's headquarters are located in San Juan, Puerto Rico.
Iván Calderón Marrero (born January 7, 1975) is a Puerto Rican former professional boxer who competed from 2001 to 2012.
 He is a two-weight world champion, having held the WBO mini flyweight title from 2003 to 2007 (making eleven successful defenses and being recognized as super champion by the organization), and the WBO, " Ring" magazine, and lineal light flyweight titles from 2007 to 2010 (making six successful defenses).
 Additionally, his August 2010 bout against Giovani Segura was named fight of the year by " Ring" magazine.
 As an amateur Calderón represented Puerto Rico in international competitions, including the 2000 Olympics.
Joan Guzmán (born May 1, 1976) is a Dominican former professional boxer who competed from 1997 to 2014.
 He is a two-weight world champion, having held the WBO junior featherweight title from 2002 to 2005, and the WBO junior lightweight title from 2006 to 2008.
Kenny Galarza Arocho (born October 16, 1985) is a professional boxer.
 He competes in the light welterweight division, and represented Puerto Rico at numerous events as an amateur.
 Galarza won seven national championships locally and earned several recognitions in international competition.
 These include: two gold medals at the Junior Olympics Invitational, silver at the 2005 Pan American Boxing Championships and bronze in the 2006 Central American and Caribbean Games.
 Prior to the 2007 Pan American Games, Galarza closed his amateur career, signing with Seminole Warriors Boxing.
 He debuted defeating Jesse Francisco on May 16, 2007.
 This victory marked the beginning of a knockout streak, which has lasted for thirteen contests.
 On September 18, 2009, Galarza won his first professional title, defeating Joshua Allotey to become the first interim light welterweight champion of the North American Boxing Organization.
 Amassing a perfect record and knockout ratio earned him inclusion in other sanctioning bodies, including the World Boxing Organization (11th), WBO Latino (7th), World Boxing Association's FEDECARIBE (6th) and World Boxing Foundation's International (10th) rankings.
Joseph William Calzaghe, {'1': ", '2': ", '3': ", '4': "} ( ; born 23 March 1972) is a Welsh former professional boxer who competed from 1993 to 2008.
 He is a two-weight world champion, having held the unified WBA (Super), WBC, IBF, WBO, "Ring" magazine, and lineal super-middleweight titles, as well as the "Ring" light-heavyweight title.
 Calzaghe is the longest-reigning super-middleweight world champion in boxing history, having held the WBO title for over 10 years and making 21 successful defences before moving up to light-heavyweight.
 As his super-middleweight and light-heavyweight reigns overlapped, he retired with the longest continual time as world champion of any active fighter.