user: ### NOW ANSWER:
Question: what is the chassis when the tyre is B, the engine is Ferrari 050 Ferrari 051 and the driver is Rubens Barrichello?
Columns: ['Entrant', 'Constructor', 'Chassis', 'Engine †', 'Tyre', 'Driver', 'Rounds']
Types: ['text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Scuderia Ferrari Marlboro', 'Ferrari', 'F2001 F2002', 'Ferrari 050 Ferrari 051', 'B', 'Michael Schumacher', 'All']
SQL:

assistant: SELECT "Chassis" FROM "Table" WHERE "Tyre" = 'B' AND "Engine †" = 'Ferrari 050 Ferrari 051' AND "Driver" = 'Rubens Barrichello';