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Vietnam is home to six telecommunications service providers three of which VinaPhone and  MobiFone  operated by the state - owned Vietnam Posts and Telecommunications Group (  VNPT  ) and the military-owned Vietnam are being most aggressively courted by foreign firms .
 subsidiaries: MobiFone, VNPT
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:
 subsidiaries: MobiFone, VNPT