instruction: What is the school year with a class AA of Rosebud-Lott, a class AAAAA of Duncanville, and a class AAA of Mont Belvieu Barbers Hill?
response: SELECT "School Year" FROM table_38478 WHERE "Class AA" = 'rosebud-lott' AND "Class AAAAA" = 'duncanville' AND "Class AAA" = 'mont belvieu barbers hill'