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His études , nocturnes , variations , preludes and bagatelles were praised by such people as Franz Liszt , Sigismond Thalberg , Ignaz Moscheles and Friedrich Kalkbrenner , and he was the dedicatee of the 24 Preludes , Op . 28 by Frédéric Chopin .
 Franz Liszt, Sigismond Thalberg, Ignaz Moscheles, Friedrich Kalkbrenner, Frédéric Chopin
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Franz Liszt, Sigismond Thalberg, Ignaz Moscheles, Friedrich Kalkbrenner, Frédéric Chopin