Question: What is the fleet size of the airline which has a callsign of COOL RED?
SQL: SELECT MIN("Fleet size") FROM "1-15637071-1" WHERE "Callsign" = 'COOL RED';

Question: How large is the fleet size of the airline with the IATA code of 5J?
SQL: SELECT COUNT("Fleet size") FROM "1-15637071-1" WHERE "IATA" = '5J';

Question: Which year did the Angeles City based airline begin operations?
SQL: SELECT "Commenced operations" FROM "1-15637071-1" WHERE "Headquarters" = 'Angeles City';

Question: When did the oldest airline start operations?
SQL: SELECT MIN("Commenced operations") FROM "1-15637071-1";

Question: Where is the headquarters of the airline which has the ICAO code of AAU?
SQL: SELECT "Headquarters" FROM "1-15637071-1" WHERE "ICAO" = 'AAU';