user: Question: Who is the entrant when the year is less than 1953?
Columns: ['Year', 'Entrant', 'Chassis', 'Engine', 'Pts.']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [1952.0, 'LD Hawthorn', 'Cooper T20', 'Bristol I6', '10']
SQL:

assistant: SELECT "Entrant" FROM "Table" WHERE "Year" < 1953.0;