user: Question: Which is the latest year that has an engine of Offenhauser L4, a chassis of Kurtis Kraft 500C, and the entrant of Federal Engineering?
Columns: ['Year', 'Entrant', 'Chassis', 'Engine', 'Points']
Types: ['real', 'text', 'text', 'text', 'real']
Sample row: [1954.0, 'Christy', 'Lesovsky', 'Offenhauser L4', 0.0]
SQL:

assistant: SELECT MAX("Year") FROM "Table" WHERE "Engine" = 'Offenhauser L4' AND "Chassis" = 'Kurtis Kraft 500C' AND "Entrant" = 'Federal Engineering';