29839
A majority of works are dedicated to music-teaching , especially piano and theory through a creative approach ( involving the player to the process of composing ) e.g. Milky Way , Art of Piano-playing , Book of Challenges , Concerto for 10 young pianists .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities:  
Answer:
 None