user: ### NOW ANSWER:
Question: What shows for ICAO when the IATA is SIN?
Columns: ['City', 'Country', 'IATA', 'ICAO', 'Airport']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['Aberdeen', 'United Kingdom', 'ABZ', 'EGPD', 'Dyce Airport']
SQL:

assistant: SELECT "ICAO" FROM "Table" WHERE "IATA" = 'SIN';