36003
The Congresses also provided the party leadership with formal legitimacy by providing a mechanism for the election of new members and the retirement of old members who had lost favor .
 organization: Congresses
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: Congresses 
Answer:
 organization: Congresses