user: Question: What is the biggest roll number of Sylvia Park School, which has a State authority?
Columns: ['Name', 'Years', 'Area', 'Authority', 'Decile', 'Roll']
Types: ['text', 'text', 'text', 'text', 'text', 'real']
Sample row: ['Bailey Road School', '1–8', 'Mount Wellington', 'State', '3', 415.0]
SQL:

assistant: SELECT MAX("Roll") FROM "Table" WHERE "Authority" = 'State' AND "Name" = 'Sylvia Park School';