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The 1980 Air Canada Cup was Canada 's second annual national midget ' AAA ' hockey championship , which was played April 15 – 20 , 1980 at the Cornwall Civic Complex in Cornwall , Ontario .
 Canada 's, Cornwall, Cornwall , Ontario
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Canada 's, Cornwall, Cornwall , Ontario