user: Question: What chassis had 39 points?
Columns: ['Year', 'Entrant', 'Chassis', 'Engine', 'Points']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [1972.0, 'Elf Team Tyrrell', 'Tyrrell 004', 'Ford V8', '0']
SQL:

assistant: SELECT "Chassis" FROM "Table" WHERE "Points" = '39';