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On September 5 , 2008 , Cromwell was nominated to succeed Michel Bastarache on the Supreme Court of Canada by Prime Minister Stephen Harper .
 Cromwell, Michel Bastarache, Stephen Harper
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Cromwell, Michel Bastarache, Stephen Harper