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At age 15 , he started to work at the Odessa Opera , where he accompanied the rehearsals .
 location: Odessa Opera
Please list all entity words in the text that fit the category.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} 
Answer:
 location: Odessa Opera