user: Question: Which enGine was on a car with G tires, a chassis model of 003 002 004 005 006, driven by Jackie Stewart?
Columns: ['Entrant', 'Constructor', 'Chassis', 'Engine', 'Tyre', 'Driver', 'Rounds']
Types: ['text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Motor Racing Developments', 'Brabham - Ford', 'BT33 BT34 BT37', 'Ford Cosworth DFV 3.0 V8', 'G', 'Graham Hill', 'All']
SQL:

assistant: SELECT "Engine" FROM "Table" WHERE "Tyre" = 'G' AND "Chassis" = '003 002 004 005 006' AND "Driver" = 'Jackie Stewart';