Please answer the following question: Facts: - hangul: - mr: kwak tae-song - rr: kwak dae-seong - hanja: Based on these bullet points, write a short biography describing the life of kwak dae-sung .
A:
kwak dae-sung is a retired south korean judoka who is a two-time asian champion -lrb- 1996 and 1997 -rrb- .he won a silver medal in the lightweight division at the 1996 summer olympics , and also won silver at the 1995 world judo championships .