user: Question: What was the stage of team ONCE?
Columns: ['Stage', 'Winner', 'General classification', 'Points classification', 'Trofeo Fast Team']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['1', 'Philippe Casado', 'Philippe Casado', 'Philippe Casado', 'Selle Italia-Magniarredo-Vetta']
SQL:

assistant: SELECT "Stage" FROM "Table" WHERE "Trofeo Fast Team" = 'ONCE';