2026
At the end of the 16th century , François Viète introduced the idea of representing known and unknown numbers by letters , nowadays called variables , and the idea of computing with them as if they were numbers - in order to obtain the result by a simple replacement .
 person: François Viète
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: François Viète 
Answer:
 person: François Viète