János Urányi
Competing in three Summer Olympics , he won a gold medal in the K-2 10000 m event at Melbourne in 1956 . 
<triplet> Summer Olympics <subj> 1956 <obj> has part <triplet> 1956 <subj> Summer Olympics <obj> instance of <subj> Melbourne <obj> location <subj> 1956 <obj> point in time