Complex sentence: Maciej Czyżowicz (born 28 January 1962 in Szczecin) is a Polish former modern pentathlete who competed in the 1988 Summer Olympics, in the 1992 Summer Olympics, and in the 1996 Summer Olympics.
Split into simpler sentences: Maciej Czyżowicz (born 28 January 1962) is a Polish former modern pentathlete. He competed at the 1988 Summer Olympics, at the 1992 Summer Olympics, and at the 1996 Summer Olympics.