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Brodax asked Campbell , and his colleague Duane Crowther , if they could animate many of the connecting sequences in the movie .
 person: Brodax; person: Campbell
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: Brodax, Campbell 
Answer:
 person: Brodax; person: Campbell