25889
Some of the cars on the agit-trains were equipped with actors for live performances or printing presses ; Vertov 's had equipment to shoot , develop , edit , and project film .
 person: Vertov
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: Vertov 
Answer:
 person: Vertov