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He studied piano and harpsichord in São Paulo , and at the age of 18 he went to Paris to work with prominent French harpsichordist Huguette Dreyfus and with Canadian harpsichordist Kenneth Gilbert .
 São Paulo, Paris, Huguette Dreyfus, Kenneth Gilbert
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 São Paulo, Paris, Huguette Dreyfus, Kenneth Gilbert