user: Question: What is the grid average with a +1 lap time and more than 27 laps?
Columns: ['Rider', 'Manufacturer', 'Laps', 'Time/Retired', 'Grid']
Types: ['text', 'text', 'real', 'text', 'real']
Sample row: ['Valentino Rossi', 'Honda', 28.0, '54:12.962', 3.0]
SQL:

assistant: SELECT AVG("Grid") FROM "Table" WHERE "Time/Retired" = '+1 lap' AND "Laps" > 27.0;