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Three events were held between March and June 2010 in the United States , Russia and Chile and only the winner of each would earn a berth to play in the 2010 World Cup , to be held in Rosario , Argentina .
 United States, Russia, Chile, Rosario, Argentina
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 United States, Russia, Chile, Rosario, Argentina