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In December 1951 , the Vélez Sársfield soccer team , which he supported , was on a tour of Brazil , and several players came down with heatstroke in Pernambuco , where Castillo was scheduled to perform .
 Vélez Sársfield, Brazil, Pernambuco, Castillo
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Vélez Sársfield, Brazil, Pernambuco, Castillo