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Scottish mathematician and physicist John Napier discovered that the multiplication and division of numbers could be performed by the addition and subtraction , respectively , of the logarithms of those numbers .
 person: John Napier
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: John Napier 
Answer:
 person: John Napier