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He proceeded to the University of Ghana , Legon , receiving a bachelor 's degree in history in 1981 and a postgraduate diploma in communication studies in 1986 .
 organization: University of Ghana; location: Legon
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: University of Ghana, Legon 
Answer:
 organization: University of Ghana; location: Legon