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The former UN arms inspector , Scott Ritter , revealed in his book , Iraq Confidential , the existence of an MI6-run psychological warfare effort , known as Operation Mass Appeal .
 person: Scott Ritter; location: Iraq
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: Scott Ritter, Iraq 
Answer:
 person: Scott Ritter; location: Iraq