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Grobbelaar takes over until a permanent replacement is appointed for Zimbabwe 's previous coach , Switzerland 's Marc Duvillard .
 Marc Duvillard, Zimbabwe, Grobbelaar, Switzerland
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, else, organization, person 
Text: {0} 
Answer:
 Marc Duvillard, Zimbabwe, Grobbelaar, Switzerland