Question: Which Olympic gold medal-winning amateur boxer is the younger brother of Somrot Kamsing?

Context paragraphs:
Somluck Kamsing: Somluck Kamsing (name used in the 1996 Summer Olympics) or Somrak Kamsing (Thai: สมรักษ์ คำสิงห์ ; rtgs: "Somrak Khamsing" ; born January 16, 1973) is a Thai Muay Thai kickboxer and Olympic gold medal-winning amateur boxer.  During the 1998 Asian Games in Bangkok, Thailand, Kamsing lit the torch during the Games' opening ceremony.  Kamsing was born in Khon Kaen.  His older brother Somrot Kamsing also competed at the highest level as an amateur boxer.

Sandra Morgan: Sandra Anne Morgan (born 6 June 1942), also known by her married name Sandra Beavis, or as Sandra Morgan-Beavis, is an Australian former freestyle swimmer who was part of the gold medal-winning team in the 4×100-metre freestyle relay at the 1956 Summer Olympics in Melbourne.  At the age of 14 years and 6 months, she became the youngest Australian to win an Olympic gold medal, a record that still stands.

Jiang Yuyuan: Jiang Yuyuan (also Yuyan; ; born November 1, 1991 in Liuzhou, Guangxi) is a retired Chinese gymnast.  She is the 2008 Chinese all-around senior National Champion and a member of the gold medal-winning People's Republic of China team for the 2008 Summer Olympics.  Jiang was a member of the silver medal-winning Chinese team at the 2007 World Championships, the bronze medal-winning member at the 2010 World Championships and 2011 World Championships, and the all-around gold medalist at the 2007 Good Luck Beijing Olympic test event.  In 2010, she replaced Cheng Fei as the captain of the Chinese national team (due to Fei's leg injury).  She won silver medal in the all-around competition at the 2010 World Championships, which is the highest position that Chinese women ever placed in all-around competition at World Championships or Olympic level.

Sabin Bornei: Sabin Marius Bornei (born January 5, 1975) is a retired amateur boxer from Romania, who won a bronze medal in the light flyweight division (– 48 kg) at the 1996 European Amateur Boxing Championships in Vejle, Denmark.  Born in Bucharest, he represented his native country in the juniorflyweight class at the 1996 Summer Olympics in Atlanta, Georgia, where he was eliminated in the second round by Thailand's Somrot Kamsing.

Carli Lloyd: Carli Anne Lloyd (born July 16, 1982) is an American soccer player, two-time Olympic gold medalist, FIFA Women's World Cup champion, 2015 FIFA Player of the Year and 2016 FIFA Player of the Year.  She currently plays for Manchester City in the FA Women's Super League and the United States women's national soccer team as a midfielder.  Lloyd scored the gold medal-winning goals in the finals of the 2008 Summer Olympics and the 2012 Summer Olympics.  She has represented the United States at three FIFA Women's World Cup tournaments: the 2007 FIFA Women's World Cup, in which she helped the U.S. win bronze; the 2011 FIFA Women's World Cup, in which the U.S. won silver; and the 2015 FIFA Women's World Cup, where Lloyd scored a hat trick, including a goal from midfield, in the final in captaining the U.S. to its third title.

John Hargis: John Lawson Hargis (born July 3, 1975) is an American former competition swimmer, Olympic gold medalist, and college swimming coach.  Hargis represented the United States at the 1996 Summer Olympics, and was a member of the gold medal-winning U.S. 4×100-meter medley relay team.  He is currently the head coach of the Pittsburgh Panthers swimming and diving team at University of Pittsburgh.

Simone Biles: Simone Arianne Biles (born March 14, 1997) is an American artistic gymnast.  Biles is the 2016 Olympic individual all-around, vault and floor gold medalist.  She was part of the gold medal-winning team dubbed the "Final Five" at the 2016 Summer Olympics in Rio de Janeiro.  Biles is a three-time world all-around champion (2013–15), three-time world floor champion (2013–15), two-time world balance beam champion (2014, 2015), four-time United States national all-around champion (2013–16), and a member of the gold medal-winning American teams at the 2014 and 2015 World Artistic Gymnastics Championships.  She also won the bronze medal for the balance beam at the Olympics and the vault at the 2015 World Championships.

Somrot Kamsing: Somrot Kamsing (Thai: สมรถ คำสิงห์ , born 1971-09-24) is a retired male boxer from Thailand, who competed for his Asian country at the 1996 Summer Olympics.  An older brother of Somluck Kamsing, he was defeated in Atlanta, Georgia in the quarterfinals of the men's light flyweight division (– 48 kg) by Bulgaria's eventual gold medalist Daniel Petrov.

Yaşar Giritli: Yaşar Giritli (born August 1, 1969) is a retired male boxer from Turkey.  He competed for his native country at the 1996 Summer Olympics in Atlanta, Georgia.  There, he was stopped in the first round of the men's light flyweight division by Thailand's Somrot Kamsing.

Lee Lai-shan: Lee Lai-Shan MBE BBS () (born in Cheung Chau, Hong Kong, 5 September 1970) is a former world champion and Olympic gold medal-winning professional windsurfer from Hong Kong.  She was the only athlete to win an Olympic medal representing British Hong Kong, before the territory's transfer to China in 1997, and remains the only person to win an Olympic gold medal for Hong Kong.

Supporting paragraphs: Somrot Kamsing Somluck Kamsing
Answer: Somluck Kamsing