user: Question: What is the total number on roll for shelly park school?
Columns: ['Name', 'Years', 'Area', 'Authority', 'Decile', 'Roll']
Types: ['text', 'text', 'text', 'text', 'real', 'real']
Sample row: ['Anchorage Park School', '1–6', 'Pakuranga', 'State', 4.0, 129.0]
SQL:

assistant: SELECT "Roll" FROM "Table" WHERE "Name" = 'shelly park school';