Conversation so far:
when is the last time minnesota vikings won a superbowl
The Minnesota Vikings played in Super Bowls 4, 8, 9 and 11, but failed to win any of them.
when was the eleventh super bowl
Super Bowl 11 was played on January 9, 1977.

Question: who did the team play against
Self-contained rewrite: who did the minnesota vikings play against in super bowl 11