user: Question: What is the highest pts after 1952 with Connaught Type A?
Columns: ['Year', 'Entrant', 'Chassis', 'Engine', 'Pts.']
Types: ['real', 'text', 'text', 'text', 'real']
Sample row: [1950.0, 'Ecurie Belge', 'Talbot-Lago T26C', 'Talbot L6', 0.0]
SQL:

assistant: SELECT MAX("Pts.") FROM "Table" WHERE "Year" > 1952.0 AND "Chassis" = 'Connaught Type A';