user: Question: What is Left Office, when Took Office is "11 June 2001", and when Minister is "Mirko Tremaglia"?
Columns: ['Portfolio', 'Minister', 'Took office', 'Left office', 'Party']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['Minister European Affairs', 'Rocco Buttiglione', '11 June 2001', '23 April 2005', 'UDC']
SQL:

assistant: SELECT "Left office" FROM "Table" WHERE "Took office" = '11 June 2001' AND "Minister" = 'Mirko Tremaglia';