Zoltán Kammerer
Competing in five Summer Olympics , he won three gold medals ( K-2 500 m: 2000 , K-4 1000 m: 2000 , 2004 ) and a silver medal ( K-4 1000 m: 2012 ) . 
<triplet> Summer Olympics <subj> 2000 <obj> has part <subj> 2004 <obj> has part