user: Question: Can you tell me the sum of Grid that has the Laps of 30, and the Rider of Toni Elias?
Columns: ['Rider', 'Manufacturer', 'Laps', 'Time', 'Grid']
Types: ['text', 'text', 'real', 'text', 'real']
Sample row: ['Casey Stoner', 'Ducati', 30.0, '44:44.982', 1.0]
SQL:

assistant: SELECT SUM("Grid") FROM "Table" WHERE "Laps" = 30.0 AND "Rider" = 'Toni Elias';