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The first person of Armenia n descent to play in the NHL , Bogosian attended Cushing Academy in Massachusetts before he joined the Peterborough Petes of the Ontario Hockey League ( OHL ) in 2006 .
 Armenia, Bogosian, Cushing Academy, Massachusetts, Peterborough Petes, Ontario Hockey League
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Armenia, Bogosian, Cushing Academy, Massachusetts, Peterborough Petes, Ontario Hockey League