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Serving as deputy chief of the U.S. Attorney 's office 's corruption unit from 1994 – 98 , Guadagno was responsible for the corruption prosecutions of former Essex County Executive Thomas D'Alessio ( a Democrat ) and of Somerset County Prosecutor Nicholas Bissell ( a Republican ) .
 Guadagno, Essex County, Somerset County
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Guadagno, Essex County, Somerset County