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Ray Kurzweil talks about postbiological evolution and Nick Bostrom talks about transhumanism and the odds that the entire universe , and our sense of it and ourselves , is a simulation by a super-intelligent civilization .
 person: Ray Kurzweil; person: Nick Bostrom
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: Ray Kurzweil, Nick Bostrom 
Answer:
 person: Ray Kurzweil; person: Nick Bostrom