user: Question: Name the total number of points for beta team march 1975 and chassis of march 751
Columns: ['Year', 'Entrant', 'Chassis', 'Engine', 'Points']
Types: ['real', 'text', 'text', 'text', 'real']
Sample row: [1974.0, 'Beta Tools / March Engineering', 'March 741', 'Cosworth V8', 1.0]
SQL:

assistant: SELECT SUM("Points") FROM "Table" WHERE "Entrant" = 'beta team march' AND "Year" = 1975.0 AND "Chassis" = 'march 751';