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Her teachers included Vincent Persichetti , Lukas Foss , Roger Sessions , and Peter Mennin .
 Vincent Persichetti, Lukas Foss, Roger Sessions, Peter Mennin
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Vincent Persichetti, Lukas Foss, Roger Sessions, Peter Mennin