user: Question: Which circuit did Alberto Ascari set the fastest lap time with a Ferrari?
Columns: ['Race', 'Circuit', 'Date', 'Pole position', 'Fastest lap', 'Winning driver', 'Constructor', 'Tyre', 'Report']
Types: ['text', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Argentine Grand Prix', 'Buenos Aires', '18 January', 'Alberto Ascari', 'Alberto Ascari', 'Alberto Ascari', 'Ferrari', 'P', 'Report']
SQL:

assistant: SELECT "Circuit" FROM "Table" WHERE "Constructor" = 'Ferrari' AND "Fastest lap" = 'Alberto Ascari';