5778
Thales searched for a simple material-form directly perceptible by the senses , behind the appearances of things , and his theory is also related to the older animism .
 person: Thales
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: Thales 
Answer:
 person: Thales