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He arranged and conducted incidental music , mostly by composers with whom he had little affinity , such as Milhaud and Tchaikovsky , but it gave him the chance to work with professional musicians , while leaving him time to compose during the day .
 person: Milhaud; person: Tchaikovsky
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: Milhaud, Tchaikovsky 
Answer:
 person: Milhaud; person: Tchaikovsky