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An Italian born in Varna , Bulgaria , Franzoni began his work as a priest in Florence , Italy in the 1950s .
 Varna, Franzoni, Florence, Italy
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Varna, Franzoni, Florence, Italy