Complex sentence: Kozu Akutsu (阿久津 浩三; born November 11,1960) is a retired long-distance runner from Japan, who represented his native country at the 1988 Summer Olympics.
Split into simpler sentences: Kozu Akutsu (阿久津 浩三; born November 11,1960) is a retired long-distance runner from Japan. He represented his native country at the 1988 Summer Olympics.