user: Question: Who was the entrant in 1971?
Columns: ['Year', 'Entrant', 'Chassis', 'Engine', 'Points']
Types: ['real', 'text', 'text', 'text', 'real']
Sample row: [1969.0, 'Roy Winkelmann Racing Ltd', 'Lotus 59B F2', 'Ford Straight-4', 0.0]
SQL:

assistant: SELECT "Entrant" FROM "Table" WHERE "Year" = 1971.0;