Question: The 1951 Belgian Grand Prix was a Formula One motor race held on 17 June 1951 at Circuit de Spa-Francorchamps ,it's the highest class of single-seat auto racing, that is sanctioned by which organization with the acronym of FIA?
Sentence (from "Formula One"): Formula One (also Formula 1 or F1 and officially the FIA Formula One World Championship) is the highest class of single-seat auto racing that is sanctioned by the Fédération Internationale de l'Automobile (FIA).
Relevant evidence: Yes