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In the 21st century , a number of prestigious university presses , such as Duke University , Indiana University and University of Chicago , have published books on BDSM written by professors , thereby lending academic legitimacy to this once taboo topic .
 organization: Duke University; organization: Indiana University; organization: University of Chicago
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: Duke University, Indiana University, University of Chicago 
Answer:
 organization: Duke University; organization: Indiana University; organization: University of Chicago