Nagalingam Ethirveerasingam
Dr Nagalingam Ethirveerasingam represented Sri Lanka ( then Ceylon ) at the 1952 ( Helsinki ) and 1956 ( Melbourne ) Summer Olympic Games . 
<triplet> Nagalingam Ethirveerasingam <subj> Sri Lanka <obj> country of citizenship <subj> 1952 (Helsinki) <obj> participant in <subj> 1956 (Melbourne) <obj> participant in <triplet> 1952 (Helsinki) <subj> 1952 <obj> point in time <triplet> 1956 (Melbourne) <subj> 1956 <obj> point in time