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He then toured Europe in the spring of 1947 , playing recitals in Rome , Venice , Naples , Paris , London and Salzburg .
 Rome, Venice, Naples, Paris, London, Salzburg
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Rome, Venice, Naples, Paris, London, Salzburg