user: Question: Which engine scored 6 points and used the March 88C chassis?
Columns: ['Year', 'Team', 'Chassis', 'Engine', 'Rank', 'Points']
Types: ['real', 'text', 'text', 'text', 'text', 'real']
Sample row: [1984.0, 'Bignotti-Cotter', 'March 84C', 'Ford Cosworth DFX', '11th', 52.0]
SQL:

assistant: SELECT "Engine" FROM "Table" WHERE "Points" = 6.0 AND "Chassis" = 'March 88C';