user: Question: What entrant drove a car with a Moore chassis prior to 1953?
Columns: ['Year', 'Entrant', 'Chassis', 'Engine', 'Points']
Types: ['real', 'text', 'text', 'text', 'real']
Sample row: [1950.0, 'Indianapolis Race Cars', 'Maserati 8CTF', 'Offenhauser L4', 0.0]
SQL:

assistant: SELECT "Entrant" FROM "Table" WHERE "Year" < 1953.0 AND "Chassis" = 'Moore';