user: Question: What is the low lap total for the under 4 grid car driven by Juan Pablo Montoya?
Columns: ['Driver', 'Constructor', 'Laps', 'Time/Retired', 'Grid']
Types: ['text', 'text', 'real', 'text', 'real']
Sample row: ['Michael Schumacher', 'Ferrari', 69.0, '1:24:04.888', 1.0]
SQL:

assistant: SELECT MIN("Laps") FROM "Table" WHERE "Grid" < 4.0 AND "Driver" = 'Juan Pablo Montoya';