user: Question: Which Authority has a Gender of Coed, a Decile smaller than 6, and an Area of Merivale?
Columns: ['Name', 'Gender', 'Area', 'Authority', 'Decile']
Types: ['text', 'text', 'text', 'text', 'real']
Sample row: ['Aquinas College', 'Coed', 'Pyes Pa', 'State integrated', 9.0]
SQL:

assistant: SELECT "Authority" FROM "Table" WHERE "Gender" = 'Coed' AND "Decile" < 6.0 AND "Area" = 'Merivale';