Park Tae-sik
He competed at the 1972 Summer Olympics and the 1976 Summer Olympics . 
<triplet> 1972 Summer Olympics <subj> 1972 <obj> point in time <subj> 1976 Summer Olympics <obj> followed by <triplet> 1976 Summer Olympics <subj> 1972 Summer Olympics <obj> follows <subj> 1976 <obj> point in time