user: Question: How many laps did Gunnar Nilsson drive?
Columns: ['Driver', 'Constructor', 'Laps', 'Time/Retired', 'Grid']
Types: ['text', 'text', 'real', 'text', 'real']
Sample row: ['Mario Andretti', 'Lotus - Ford', 80.0, '1:51:35.470', 2.0]
SQL:

assistant: SELECT SUM("Laps") FROM "Table" WHERE "Driver" = 'Gunnar Nilsson';