166571
There , Barrera took charge of a horse named Affirmed who , under 18-year-old jockey Steve Cauthen , would become one of the great horses in American racing history .
 person: Barrera; person: Steve Cauthen
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: Barrera, Steve Cauthen 
Answer:
 person: Barrera; person: Steve Cauthen