user: Question: What is the least number of laps for the driver Jo Siffert?
Columns: ['Driver', 'Constructor', 'Laps', 'Time/Retired', 'Grid']
Types: ['text', 'text', 'real', 'text', 'real']
Sample row: ['John Surtees', 'Honda', 68.0, '1:43:45.0', 9.0]
SQL:

assistant: SELECT MIN("Laps") FROM "Table" WHERE "Driver" = 'Jo Siffert';