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Aarón Wergifker ( born 1915 ) is a retired Brazil - born , naturalized Argentine football defender .
 Aarón Wergifker, Brazil, Argentine
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Aarón Wergifker, Brazil, Argentine