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Perhaps the most well known version is the reconstruction of the piece for piano and orchestra by Hershy Kay , which was later used for a ballet by George Balanchine .
 person: Hershy Kay; person: George Balanchine
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
 Entities: Hershy Kay, George Balanchine 
Answer:
 person: Hershy Kay; person: George Balanchine