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the fbi has said nothing publicly about anyone it may be investigating , but attorney general john ashcroft did refer publicly to steven hatfield , a former researcher as a person of interest .
 organization: the fbi; organization: it; person: anyone it may be investigating; person: attorney general; person: attorney general john ashcroft; person: steven hatfield; person: a former researcher; person: a person of interest
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: organization, person, geographical social political, vehicle, location, weapon, facility 
Text: {0} 
Answer:
 organization: the fbi; organization: it; person: anyone it may be investigating; person: attorney general; person: attorney general john ashcroft; person: steven hatfield; person: a former researcher; person: a person of interest