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Patsy Toh has performed often in Europe , China and the Americas , and has served as a professor of piano at the Royal Academy of Music and has taught at Purcell and Yehudi Menuhin Schools .
 Patsy Toh, Royal Academy of Music, Purcell, Yehudi Menuhin
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Patsy Toh, Royal Academy of Music, Purcell, Yehudi Menuhin