92445
The estimative powers of animals interpret the environment as sensed to form a " meaningful world " of objects , but the objects of this world ( or " Umwelt " , in Jakob von Uexküll 's term ) consist exclusively of objects related to the animal as desirable ( + ) , undesirable ( – ) , or " safe to ignore " ( 0 ) .
 Jakob von Uexküll
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 Jakob von Uexküll