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The 1988 Air Canada Cup was Canada 's ninth annual national midget ' AAA ' hockey championship , which was played in April 1987 at the Earl Armstrong Arena in Gloucester , Ontario .
 organization: Canada 's
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: Canada 's 
Answer:
 organization: Canada 's