Question: The 1981 NFL season was the 62nd regular season of the National Football League, that ended with a game between the San Francisco 49ers of the National Football Conference and what winner of the American Football Conference? 
Sentence (from "1981 NFL season"): The season ended with Super Bowl XVI when the San Francisco 49ers defeated the Cincinnati Bengals 26-21 at the Pontiac Silverdome in Michigan.
Relevant evidence: Yes