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History The opening ceremony of Plekhanov House took place on 11 June 1929 , following the donation of the archives and library of Georgi Plekhanov by his widow , Rosalie Plekhanova , to the Soviet Union in 1925 .
 person: Plekhanov; person: Georgi Plekhanov; location: Soviet Union
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: Plekhanov, Georgi Plekhanov, Soviet Union 
Answer:
 person: Plekhanov; person: Georgi Plekhanov; location: Soviet Union