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However , in the countries of South America which became very important emigration targets in the post - World War I period agricultural workers or other labourers were still in demand , and in those destinations the bulk of emigrants took up employment in agriculture ( Argentina and Brazil ) or in the mines ( Chile and Bolivia ) .
 South America, Argentina, Brazil
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 South America, Argentina, Brazil