user: Question: What Authority has a decile greater than 5, with a roll of 170?
Columns: ['Name', 'Years', 'Area', 'Authority', 'Decile', 'Roll']
Types: ['text', 'text', 'text', 'text', 'real', 'real']
Sample row: ['Auroa School', '1–8', 'Auroa', 'State', 8.0, 170.0]
SQL:

assistant: SELECT "Authority" FROM "Table" WHERE "Decile" > 5.0 AND "Roll" = 170.0;