user: Question: which Authority has a Coed school with a decile greater than 4, with a 150 roll?
Columns: ['Name', 'Years', 'Gender', 'Area', 'Authority', 'Decile', 'Roll']
Types: ['text', 'text', 'text', 'text', 'text', 'real', 'text']
Sample row: ['Aokautere School', '1–6', 'Coed', 'Aokautere', 'State', 10.0, '86']
SQL:

assistant: SELECT "Authority" FROM "Table" WHERE "Gender" = 'Coed' AND "Decile" > 4.0 AND "Roll" = '150';