user: Question: Which roll has an Area of Mahia?
Columns: ['Name', 'Years', 'Gender', 'Area', 'Authority', 'Decile', 'Roll']
Types: ['text', 'text', 'text', 'text', 'text', 'real', 'real']
Sample row: ['Frasertown School', '1–6', 'Coed', 'Frasertown', 'State', 4.0, 107.0]
SQL:

assistant: SELECT "Roll" FROM "Table" WHERE "Area" = 'Mahia';