110130
He majored in music at the University of Kansas and completed further studies in Houston and New York , including a correspondence course in the mathematical musical progressions advanced by the influential theorist Joseph Schillinger , who had also taught George Gershwin .
 University of Kansas, Joseph Schillinger, George Gershwin
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 University of Kansas, Joseph Schillinger, George Gershwin