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The 15th Prime Minister Pierre Trudeau wrote in his " Memoirs " that : However , there are critics who say that such a task is practically impossible .
 person: Pierre Trudeau
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
 Entities: Pierre Trudeau 
Answer:
 person: Pierre Trudeau