335581
He also sang in Paris and London , and appeared in premières of operas by Mayr , Pacini , and Mercadante .
 Mayr, Pacini, Mercadante
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Mayr, Pacini, Mercadante