user: ### NOW ANSWER:
Question: What 1957 engine has a Chassis of Connaught Type B?
Columns: ['Year', 'Entrant', 'Chassis', 'Engine', 'Points']
Types: ['real', 'text', 'text', 'text', 'real']
Sample row: [1957.0, 'Connaught Engineering', 'Connaught Type B', 'Alta Straight-4', 0.0]
SQL:

assistant: SELECT "Engine" FROM "Table" WHERE "Chassis" = 'Connaught Type B' AND "Year" > 1957.0;