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Illustrations of the passenger pigeon were often drawn after stuffed birds , and Charles R. Knight is the only " serious " artist known to have drawn the species from life .
 person: Charles R. Knight
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: Charles R. Knight 
Answer:
 person: Charles R. Knight