5851
They did benefits for strikers , at which they sang songs such as ' Talking Union ' , about the struggles for unionisation of industrial workers such as miners and auto mobile workers .
 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