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Work started on the creation of the Racecourse Colliery exhibit in 1979 and , with the exception of the head frame , all work was carried out on Sundays by volunteers from the Birmingham Enterprise Club and the Friends of the Black Country Museum Mining Group .
 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