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" Colectivo " ( English : collective bus ) is the name given in Argentina , Colombia , Chile and Paraguay to a type of public transportation vehicle , especially those of Argentina 's capital city , Buenos Aires .
 Argentina, Colombia, Chile, Paraguay, Argentina, Buenos Aires
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Argentina, Colombia, Chile, Paraguay, Argentina, Buenos Aires