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Shortly after releasing their debut album Holding Hands , the duo has been touring The United States and Europe extensively since August 2013 .
 location: The United States; location: Europe
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: The United States, Europe 
Answer:
 location: The United States; location: Europe