12598
Praxagoras identified the difference between arteries and veins .
 person: Praxagoras
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: Praxagoras 
Answer:
 person: Praxagoras