user: Question: What is the sum of grid values of driver Michael Schumacher with lap counts larger than 66?
Columns: ['Driver', 'Constructor', 'Laps', 'Time/Retired', 'Grid']
Types: ['text', 'text', 'real', 'text', 'real']
Sample row: ['Michael Schumacher', 'Ferrari', 67.0, '1:42:00.307', 2.0]
SQL:

assistant: SELECT SUM("Grid") FROM "Table" WHERE "Laps" > 66.0 AND "Driver" = 'Michael Schumacher';