#shaft.passage  a vertical passage into a mine
  supertype:  #passage.way  a way through or along which someone or something may pass
  subtype:  #air_shaft  #downcast
  part of:  #mine  excavation in the earth from which ores and minerals are extracted
     part of:  #colliery__pit  a workplace consisting of a coal mine plus all the buildings and equipment connected with it

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