128405
He later transferred to the Thornton School of Music at the University of Southern California to study opera as a tenor and was subsequently accepted into the university 's Drama Conservatory .
 Thornton School of Music, University of Southern California, Drama Conservatory
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 Thornton School of Music, University of Southern California, Drama Conservatory