Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
What Date has a Winning driver of ugo sivocci?

### Inputs:
table_name: table, columns: ['Name', 'Circuit', 'Date', 'Winning driver', 'Winning constructor', 'Report']

### Response:
SELECT Date FROM table WHERE Winning driver = ugo sivocci