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He was elected a corresponding member of the Russian Academy of Sciences in 1997 and a full member in 2011 .
 organization: Russian Academy of Sciences
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: Russian Academy of Sciences 
Answer:
 organization: Russian Academy of Sciences