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The Late-May 2008 tornado outbreak sequence from May 22 , 2008 to May 31 , 2008 affected much of the central United States and parts of Canada .
 location: United States; location: Canada
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: United States, Canada 
Answer:
 location: United States; location: Canada