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The Monroe Doctrine Centennial half dollar was a fifty-cent piece struck by the United States Bureau of the Mint .
 person: Monroe; organization: Mint
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: Monroe, Mint 
Answer:
 person: Monroe; organization: Mint