user: ### NOW ANSWER:
Question: What is the ICAO for Riyadh, Saudi Arabia?
Columns: ['City', 'Country', 'IATA', 'ICAO', 'Airport']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['Abidjan', "Côte d'Ivoire", 'ABJ', 'DIAP', 'Port Bouet Airport']
SQL:

assistant: SELECT "ICAO" FROM "Table" WHERE "Country" = 'Saudi Arabia' AND "City" = 'Riyadh';