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Created by Todd McFarlane and Robert Kirkman , the series debuted on October 7 , 2009 .
 person: Todd McFarlane; person: Robert Kirkman
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: Todd McFarlane, Robert Kirkman 
Answer:
 person: Todd McFarlane; person: Robert Kirkman