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In their fiction , authors such as Ayn Rand and George Orwell explored how linguistic relativity might be exploited for political purposes .
 person: Ayn Rand; person: George Orwell
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: Ayn Rand, George Orwell 
Answer:
 person: Ayn Rand; person: George Orwell