Question: Do Jan Opperman and Sylvia Walby have the same nationality?
Sentence (from "Jan Opperman"): Opperman was just hitting his stride in the elite United States Auto Club's, sprint, midget and dirt car( called Silver Crown division today) divisions when he suffered critical head injuries while battling for the lead of the Hoosier Hundred at the Indianapolis State Fairgrounds in early September 1976.
Relevant evidence: No