Input (grade 13): Daisuke Oku (born 7 February 1976 in Amagasaki, HyÅ go, Japan) is a Japanese former football player who was capped 26 times and scored 2 goals for the Japanese national team.
Output (grade 6): Daisuke Oku (born 7 February 1976) is a former Japanese football player. He has played for Japan national team.