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This festival was inaugurated in 1986 by the conductor Emil Tchakarov ( 1948 - 1991 ) , a talented protégé of Herbert von Karajan .
 Emil Tchakarov, Herbert von Karajan
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 Emil Tchakarov, Herbert von Karajan