user: Question: How far is the Olbia to Sassari route?
Columns: ['Date', 'Course', 'Distance', 'Type', 'Winner']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['26 May', 'Olbia to Olbia', 'km (mi)', 'Hilly stage', 'Philippe Casado ( FRA )']
SQL:

assistant: SELECT "Distance" FROM "Table" WHERE "Course" = 'Olbia to Sassari';