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It was Huang Chih-peng's first visit to  Ho Chi Minh  City in southern  Vietnam  since the former director-general of the Bureau of Foreign Trade took office Oct. 6 as the de facto ambassador to Vietnam .
 Ho Chi Minh, Vietnam
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:
 Ho Chi Minh, Vietnam