user: Question: Who was the winning driver of the Savio Circuit with the constructor Itala?
Columns: ['Name', 'Circuit', 'Date', 'Winning driver', 'Winning constructor', 'Report']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Rome Grand Prix', 'Monte Mario', '22 February', 'Carlo Masetti', 'Bugatti', 'Report']
SQL:

assistant: SELECT "Winning driver" FROM "Table" WHERE "Winning constructor" = 'Itala' AND "Name" = 'Savio Circuit';