user: Question: Which area served Coed genders at Kaharoa School and had a Decile of 9?
Columns: ['Name', 'Years', 'Gender', 'Area', 'Authority', 'Decile']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Aorangi School', '1–6', 'Coed', 'Western Heights', 'State', '2']
SQL:

assistant: SELECT "Area" FROM "Table" WHERE "Gender" = 'Coed' AND "Decile" = '9' AND "Name" = 'Kaharoa School';