user: Question: Which of the chassis had a total of 7 points?
Columns: ['Year', 'Entrant', 'Chassis', 'Engine', 'Points']
Types: ['real', 'text', 'text', 'text', 'real']
Sample row: [1950.0, 'Pioneer Auto Repair', 'Wetteroth', 'Offenhauser L4', 0.0]
SQL:

assistant: SELECT "Chassis" FROM "Table" WHERE "Points" = 7.0;