CREATE TABLE "south_korea" (
  "airline" text,
  "icao" text,
  "iata" text,
  "callsign" text,
  "commenced_operations" text
);

Question: What airline has a IATA of BX?
SQL: SELECT "airline" FROM "south_korea" WHERE "iata"='bx';

Question: What is the ICAO for Asiana Airlines?
SQL: SELECT "icao" FROM "south_korea" WHERE "airline"='asiana airlines';

Question: What is the commenced operation where the ICAO is KAL?
SQL: SELECT "commenced_operations" FROM "south_korea" WHERE "icao"='kal';

Question: What is the ICAO for Air Busan?
SQL: SELECT "icao" FROM "south_korea" WHERE "callsign"='air busan';

Question: What is the callsign where the ICAO is AAR?
SQL: SELECT "callsign" FROM "south_korea" WHERE "icao"='aar';