user: Question: What is the total number of Rolls of state schools in hapuku with a Decile greater than 4?
Columns: ['Name', 'Years', 'Gender', 'Area', 'Authority', 'Decile', 'Roll']
Types: ['text', 'text', 'text', 'text', 'text', 'real', 'real']
Sample row: ['Hapuku School', '1–8', 'Coed', 'Hapuku', 'State', 4.0, 23.0]
SQL:

assistant: SELECT SUM("Roll") FROM "Table" WHERE "Authority" = 'state' AND "Area" = 'hapuku' AND "Decile" > 4.0;