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She also studied with Alfred Cortot , Dame Myra Hess and Aube Tzerko ( a pupil of Artur Schnabel ) .
 Alfred Cortot, Myra Hess, Artur Schnabel
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Alfred Cortot, Myra Hess, Artur Schnabel