11068
Hainan Airlines  Company Limited ( HNA ) ( ) ( ) is an airline headquartered in  Haikou  People's Republic of China .
 Hainan Airlines, Haikou
Please list all entity pairs containing a certain relationship in the given options.Output format is "word1, word2; word3, word4". 
Option: cities of residence, top members employees, members, alternate names, origin, state or provinces of residence, title of person, spouse, city of headquarters, NA, founded by, state or province of headquarters, employee of, countries of residence, country of birth, founded, subsidiaries, country of headquarters 
Text: {0} 
Answer:
 Hainan Airlines, Haikou