user: Question: Who is driver of the D6 chassis?
Columns: ['Entrant', 'Constructor', 'Chassis', 'Engine', 'Tyres', 'Driver', 'Rounds']
Types: ['text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['TAG Williams Racing Team', 'Williams - Ford', 'FW08C', 'Ford Cosworth DFV 3.0 V8', 'G', 'Keke Rosberg', '1-14']
SQL:

assistant: SELECT "Driver" FROM "Table" WHERE "Chassis" = 'D6';