user: Question: What is the chassis for the year of 1969?
Columns: ['Year', 'Entrant', 'Chassis', 'Engine', 'Points']
Types: ['real', 'text', 'text', 'text', 'real']
Sample row: [1969.0, 'Owen Racing Organisation', 'BRM P138', 'BRM', 0.0]
SQL:

assistant: SELECT "Chassis" FROM "Table" WHERE "Year" = 1969.0;