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Early in 1990 he became widely acclaimed in Christian theological circles after he addressed the General Committee of the All Africa Conference of Churches ( AACC ) on 30 March at Nairobi , reflecting on “ The Future of the Church and the Church of the Future in Africa .
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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:  
Answer:
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