user: ### NOW ANSWER:
Question: What is the decile of the school with a roll larger than 513?
Columns: ['Name', 'Years', 'Gender', 'Area', 'Authority', 'Decile', 'Roll']
Types: ['text', 'text', 'text', 'text', 'text', 'real', 'real']
Sample row: ['Alexandra School', '1–8', 'Coed', 'Alexandra', 'State', 8.0, 194.0]
SQL:

assistant: SELECT SUM("Decile") FROM "Table" WHERE "Roll" > 513.0;