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Yogis such as B. K. S. Iyengar advocate both inhaling and exhaling through the nose in the practice of yoga , rather than inhaling through the nose and exhaling through the mouth .
 person: B. K. S. Iyengar
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: B. K. S. Iyengar 
Answer:
 person: B. K. S. Iyengar