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Roland Ravatomanga ( born August 13 , 1951 in Miarinarivo ) is a Malagasy politician .
 Roland Ravatomanga, Miarinarivo, Malagasy politician
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Roland Ravatomanga, Miarinarivo, Malagasy politician