#ridgepole__ridge__rooftree  a beam laid along the ridge of a roof; provides attachment for upper end of rafters
  supertype:  #beam  long thick piece of wood or metal or concrete, etc., used in construction
  part of:  #gable_roof__gableroof__saddle_roof__saddleback__saddleback_roof  a double sloping roof with a ridge and gables at each end

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