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Police in  Vietnam  prevented major anti-Chinese rallies Tuesday with what activists said were scores of detentions ahead of the  Ho Chi Minh  City leg of the troubled Olympic torch relay.The US - based pro-democracy group Viet Tan said it had confirmed more than a dozen detainees by name in Hanoi while several activists and bloggers claimed scores more had been taken into custody including a group of fishermen .
 countries of residence: Vietnam, Ho Chi Minh
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:  Vietnam, Ho Chi Minh 
Answer:
 countries of residence: Vietnam, Ho Chi Minh