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And these investigations into police corruption are only possible because there are people brave enough to denounce them , " Piotti said , promising a major overhaul of the provincial police next month .
 person: Piotti
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, else, organization, person 
Text: {0} 
 Entities: Piotti 
Answer:
 person: Piotti