user: Question: What is the lowest grid for roberto rolfo with more than 26 laps?
Columns: ['Rider', 'Manufacturer', 'Laps', 'Time/Retired', 'Grid']
Types: ['text', 'text', 'real', 'text', 'real']
Sample row: ['Marco Melandri', 'Aprilia', 26.0, '42:52.922', 2.0]
SQL:

assistant: SELECT MIN("Grid") FROM "Table" WHERE "Rider" = 'roberto rolfo' AND "Laps" > 26.0;