user: Question: Which IHSAA Football Class has an IHSAA Class of AA, and an Enrollment of 475?
Columns: ['School', 'Location', 'Mascot', 'Enrollment', 'IHSAA Class', 'IHSAA Football Class', '# / County']
Types: ['text', 'text', 'text', 'real', 'text', 'text', 'text']
Sample row: ['Cass', 'Walton', 'Kings', 504.0, 'AA', 'AA', '09 Cass']
SQL:

assistant: SELECT "IHSAA Football Class" FROM "Table" WHERE "IHSAA Class" = 'AA' AND "Enrollment" = 475.0;