215211
The crews are made up of volunteers from locomotive preservation societies , or in the case of operational main line certified locomotives of the National Collection , from their permanent custodians .
 None
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:  
Answer:
 None