19327
He briefly joined supporters of Leon Trotsky against those of Joseph Stalin over the question of party democracy .
 person: Leon Trotsky; person: Joseph Stalin
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: Leon Trotsky, Joseph Stalin 
Answer:
 person: Leon Trotsky; person: Joseph Stalin