Complex sentence: Saul Weigopwa (born June 14,1984 in Song) is a Nigerian athlete, who specializes in 400 Metres, where his personal best is 45.00 (a result he has achieved twice).
Split into simpler sentences: Saul Weigopwa (born June 14,1984 in Song) is a Nigerian athlete. Weigopwa specializes in 400 Metres, where his personal best is 45.00 (a result he has achieved twice).