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He is currently a retired emeritus senior consultant engaged in writing and lecturing , and his collected papers are archived at the Charles Babbage Institute at the University of Minnesota .
 organization: Charles Babbage Institute
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: Charles Babbage Institute 
Answer:
 organization: Charles Babbage Institute