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He studied at the University of Berlin , studying with Curt Sachs and Erich von Hornbostel , and graduating in 1934 .
 organization: University of Berlin; person: Curt Sachs; person: Erich von Hornbostel
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 Berlin, Curt Sachs, Erich von Hornbostel 
Answer:
 organization: University of Berlin; person: Curt Sachs; person: Erich von Hornbostel