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There has been a choir at the cathedral since 1526 , when John Taverner was the organist and also master of the choristers .
 person: John Taverner
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 person: John Taverner