user: Question: What is the average number of laps for a grid of 6?
Columns: ['Driver', 'Constructor', 'Laps', 'Time/Retired', 'Grid']
Types: ['text', 'text', 'real', 'text', 'real']
Sample row: ['Nelson Piquet', 'Williams - Honda', 44.0, '1:21:25.091', 4.0]
SQL:

assistant: SELECT AVG("Laps") FROM "Table" WHERE "Grid" = 6.0;