1032
In order to provide better interconnection between international flights and domestic destinations in China Air China  Shanghai Airlines  and other Star Alliance member carriers are working together to improve the two key airports in China -- Beijing Capital International Airport and  Shanghai  Pudong Airport .
 city of headquarters: Shanghai Airlines, Shanghai
Given a phrase that describes the relationship between two words, extract the words and the lexical relationship between them. The output format should be "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} 
Answer:
 city of headquarters: Shanghai Airlines, Shanghai