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Two years later , in the summer of 1954 , his parents took him to Salzburg to take part in Igor Markevitch 's conducting classes .
 Salzburg, Igor Markevitch
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Salzburg, Igor Markevitch