Pertti Johannes Karppinen ( born 17 February 1953 ) is a retired Finnish rower noted for his three consecutive Olympic gold medals in single sculls in 1976 , 1980 and 1984 .
Head entity: 1984 Q909939 30
Tail entity: 1980 Q222264 28
Relation (head \u2192 tail): P155
Inverse relation (tail \u2192 head): P156