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Democrat Claire McCaskill , or PACs working on her behalf , also aired negative commercials aimed at her most-likely November opponents .
 person: Claire McCaskill
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: Claire McCaskill 
Answer:
 person: Claire McCaskill