Task: Explanation
Input (English): 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. Question: Which Olympic gold medal-winning amateur boxer is the younger brother of Somrot Kamsing? Answer: Somluck Kamsing
Output (English):  An older brother of Somluck Kamsing, he was defeated in Atlanta, Georgia in the quarterfinals of the mens light flyweight division – 48 kg by Bulgarias eventual gold medalist Daniel Petrov.