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