user: Question: What is the most points when Maserati made the engine, and a Entrant of Owen Racing Organisation?
Columns: ['Year', 'Entrant', 'Chassis', 'Engine', 'Points']
Types: ['real', 'text', 'text', 'text', 'real']
Sample row: [1952.0, 'HW Motors', 'HWM 52', 'Alta', 0.0]
SQL:

assistant: SELECT MAX("Points") FROM "Table" WHERE "Engine" = 'Maserati' AND "Entrant" = 'Owen Racing Organisation';