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Burger was brought in by Brendan Venter as a replacement for Wikus van der Heerden , who returned to South Africa .
 Burger, Brendan Venter, South Africa
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Burger, Brendan Venter, South Africa