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In 1990 , he participated in the International Atomic Energy Agency ( IAEA ) Expert Group establishing the Chernobyl Centre for International Research .
 organization: International Atomic Energy Agency; organization: Centre
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: International Atomic Energy Agency, Centre 
Answer:
 organization: International Atomic Energy Agency; organization: Centre