9833
In areas with working class majorities , in particular coal-mining areas , Lib-Lab candidates were popular , and they received sponsorship and endorsement from trade unions .
 organization: Lib-Lab
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 organization: Lib-Lab