Johan Laats
He competed at the 1988 , 1992 and the 1996 Summer Olympics . 
<triplet> 1988 <subj> 1988 <obj> point in time <triplet> 1992 <subj> 1996 Summer Olympics <obj> followed by <triplet> 1996 Summer Olympics <subj> 1992 <obj> follows <subj> 1996 <obj> point in time