CREATE TABLE table_51591 ("City" TEXT, "Country" TEXT, "IATA" TEXT, "ICAO" TEXT, "Airport" TEXT)

What is the ICAO for Antalya Airport?
SELECT "ICAO" FROM table_51591 WHERE "Airport" = 'antalya airport'
SELECT "ICAO" FROM "table_51591" WHERE "Airport" = 'antalya airport'