user: Question: In 1961, what was the Chassis when the points were lower than 6?
Columns: ['Year', 'Entrant', 'Chassis', 'Engine', 'Points']
Types: ['real', 'text', 'text', 'text', 'real']
Sample row: [1961.0, 'Scuderia Centro Sud', 'Cooper T53', 'Maserati Straight-4', 0.0]
SQL:

assistant: SELECT "Chassis" FROM "Table" WHERE "Points" < 6.0 AND "Year" = 1961.0;