Complex sentence: John Ian Wing (born 18 November 1939) is a British resident of Chinese descent who, as a student in Australia in 1956, wrote an anonymous letter to the International Olympic Committee suggesting the athletes from all countries mingle during the closing parade.
Split into simpler sentences: John Ian Wing (born 18 November 1939) is a British resident of Chinese descent. He was a student in Australia in 1956 when he wrote an anonymous letter to the International Olympic Committee suggesting the athletes from all countries mingle during the closing parade.