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The agreement was signed on August 11 , 2009 by Canadian Prime Minister Stephen Harper and Panamanian President Ricardo Martinelli .
 person: Prime Minister Stephen Harper; person: President Ricardo Martinelli
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: Prime Minister Stephen Harper, President Ricardo Martinelli 
Answer:
 person: Prime Minister Stephen Harper; person: President Ricardo Martinelli