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He toured numerous times throughout Europe ( 1960 , 1961 , 1965 , 1970 , 1977 , 1979 , 1983 , and 1988 ) in addition to making numerous appearances in North America , including 8 nationwide tours of Canada .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
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