user: Question: What is the number of points for the Entrant of Escuderia Bandeirantes earlier than 1952?
Columns: ['Year', 'Entrant', 'Chassis', 'Engine', 'Points']
Types: ['real', 'text', 'text', 'text', 'real']
Sample row: [1951.0, 'Escuderia Bandeirantes', 'Maserati 4CLT/48', 'Maserati Straight-4', 0.0]
SQL:

assistant: SELECT SUM("Points") FROM "Table" WHERE "Entrant" = 'Escuderia Bandeirantes' AND "Year" < 1952.0;