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He was the last surviving MP who served when Joseph Cook was Prime Minister , as well as the last who served during Andrew Fisher 's third tenure as PM .
 person: Joseph Cook; person: Andrew Fisher
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: Joseph Cook, Andrew Fisher 
Answer:
 person: Joseph Cook; person: Andrew Fisher