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Oscar Peterson at the Stratford Shakespearean Festival is a 1956 live album by Oscar Peterson , accompanied by Ray Brown and Herb Ellis , recorded at the 1956 Stratford Shakespeare Festival .
 person: Oscar Peterson; person: Oscar Peterson; person: Ray Brown; person: Herb Ellis
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: Oscar Peterson, Oscar Peterson, Ray Brown, Herb Ellis 
Answer:
 person: Oscar Peterson; person: Oscar Peterson; person: Ray Brown; person: Herb Ellis