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He went on to study at the Bucharest Conservatory ( now the National University of Music ) under Ion Nonna Otescu and in Paris under Nadia Boulanger and Paul Dukas .
 Bucharest, National University of Music, Ion Nonna Otescu, Nadia Boulanger, Paul Dukas
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Bucharest, National University of Music, Ion Nonna Otescu, Nadia Boulanger, Paul Dukas