#axle  a shaft on which a wheel rotates
  supertype:  #shaft.rod  a long rod or pole (especially the handle of an implement or the body of a weapon like a spear or arrow)
  subtype:  #dead_axle  #journal.axle  #live_axle
  part of:  #wheeled_vehicle  a vehicle that moves on wheels and usually has a container for transporting things or people

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