Complex sentence: Robert Grondelaers (28 February 1933 in Opglabbeek--22 August 1989 in Opglabbeek) was a road cyclist from Belgium, who won the silver medal in the men's individual road race at the 1952 Summer Olympics in Helsinki, Finland.
Split into simpler sentences: Robert Grondelaers (28 February 1933--22 August 1989) was a road cyclist from Belgium. He won the silver medal in the men's individual road race at the 1952 Summer Olympics in Helsinki, Finland.