550
 For one thing , American involvement in Vietnam began with more public support and greater agreement among the military , the government , the media and academia that fighting communism in Southeast Asia was a worthy goal . 
 location contains: Southeast Asia, Vietnam
Given options, please tell me the relationships of all the listed entity pairs.Output format is "relation1: word1, word2; relation2: word3, word4". 
Option: nationality, country capital, place of death, children, location contains, place of birth, place lived, administrative division of country, country of administrative divisions, company, neighborhood of, company founders 
Text: {0} 
 Entity Pairs:  Southeast Asia, Vietnam 
Answer:
 location contains: Southeast Asia, Vietnam