The conversation between human and AI assistant.
[|Human|] How many national championships had Youngstown State Penguins football team won prior to 1991?
[|AI|] None. 1991 was their first national championship in school history so there weren't any prior national championships for Youngstown State Penguins football team.
[|Human|] 
How many national championships had Youngstown State Penguins football team won prior to 1991?