user: Question: for Fiumicino Airport what is the icao?
Columns: ['City', 'Country', 'IATA', 'ICAO', 'Airport']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['Aberdeen †', 'United Kingdom', 'ABZ', 'EGPD', 'Aberdeen Airport']
SQL:

assistant: SELECT "ICAO" FROM "Table" WHERE "Airport" = 'Fiumicino Airport';