user: Question: Which IHSAA Football Class has an Enrollment of 406?
Columns: ['School', 'Location', 'Mascot', 'Enrollment', 'IHSAA Football Class', 'County']
Types: ['text', 'text', 'text', 'real', 'text', 'text']
Sample row: ['Eastern Greene', 'Bloomfield', 'Thunderbirds', 406.0, 'A', '28 Greene']
SQL:

assistant: SELECT "IHSAA Football Class" FROM "Table" WHERE "Enrollment" = 406.0;