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In March 2001 the President appointed a new Prime Minister , Cándido Muatetema Rivas , and replaced several ministers perceived to be especially corrupt .
 Cándido Muatetema Rivas
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Cándido Muatetema Rivas