63987
He later worked as an assistant to Diego Rivera for the mural done at the Insurgentes Theater , as well as the Olympic Stadium at the Ciudad Universitaria .
 person: Diego Rivera
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: Diego Rivera 
Answer:
 person: Diego Rivera