user: Question: Who was teh rider with 18 laps and a grid of 25?
Columns: ['Rider', 'Bike', 'Laps', 'Time', 'Grid']
Types: ['text', 'text', 'real', 'text', 'real']
Sample row: ['Fonsi Nieto', 'Suzuki GSX-R1000', 18.0, '36:12.963', 11.0]
SQL:

assistant: SELECT "Rider" FROM "Table" WHERE "Laps" = 18.0 AND "Grid" = 25.0;