5959
In southern  China   China Southern Airlines  cancelled flights from the Guangdong provincial capital Guangzhou and Xiamen to the Philippines capital Manila and said service would be further disrupted to Southeast Asian cities .
 country of headquarters: China, China Southern Airlines
Given options, please tell me the relationships of all the listed entity pairs.Output format is "relation1: word1, word2; relation2: 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} 
 Entity Pairs:  China, China Southern Airlines 
Answer:
 country of headquarters: China, China Southern Airlines