6280
495 BC ) and the Pythagoreans , Empedocles challenged the practice of animal sacrifice and killing animals for food .
 person: Pythagoreans; person: Empedocles
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: Pythagoreans, Empedocles 
Answer:
 person: Pythagoreans; person: Empedocles