Complex sentence: Wilfried Hartung (born August 16,1953 in East Berlin, East Germany) is a German swimmer who competed for East Germany in the 1972 Summer Olympics and again in the 1976 Summer Olympics.
Split into simpler sentences: Wilfried Hartung (born August 16,1953) is a German swimmer. Born in East Berlin, East Germany, he competed for East Germany in the 1972 Summer Olympics and again in the 1976 Summer Olympics.