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In 1956 the founder of Lettrism , Isidore Isou , developed the notion of a work of art which , by its very nature , could never be created in reality , but which could nevertheless provide aesthetic rewards by being contemplated intellectually .
 person: Isidore Isou
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: Isidore Isou 
Answer:
 person: Isidore Isou