Question: What did the man who died 23 March 1981 ride in the 1967 Isle of Man Tourist Trophy
Sentence (from "1967 Isle of Man TT"): Five races, in different engine-capacity classes of 50, 125, 250, 350 and the 500 cc Senior TT, were the second round of the FIM World Grand Prix motorcycling championship season (now known as MotoGP).
Relevant evidence: No