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The Roman Catholic Diocese of Petrópolis ( ) is a diocese located in the city of Petrópolis in the Ecclesiastical province of Niterói in Brazil .
 Petrópolis, Petrópolis
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Petrópolis, Petrópolis