5923
The author claims to have consulted all the best authorities , the most important of which was a lost treatise on the subject by Polybius .
 person: Polybius
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: Polybius 
Answer:
 person: Polybius