Complex sentence: Jan Jaap Korevaar (born May 22,1957 in Delft) is a former water polo player from The Netherlands, who finished in sixth position with the Dutch team at the 1980 Summer Olympics in Moscow.
Split into simpler sentences: Jan Jaap Korevaar (born May 22,1957 in Delft) is a former water polo player from The Netherlands. He finished in sixth position with the Dutch team at the 1980 Summer Olympics in Moscow.