user: Question: I want the lowest Grid for David Coulthard
Columns: ['Driver', 'Constructor', 'Laps', 'Time/Retired', 'Grid']
Types: ['text', 'text', 'real', 'text', 'real']
Sample row: ['Michael Schumacher', 'Ferrari', 77.0, '1:41:49.675', 1.0]
SQL:

assistant: SELECT MIN("Grid") FROM "Table" WHERE "Driver" = 'David Coulthard';