#ground_tackle__anchor  a mechanical device that prevents a vessel from moving
  supertype:  #hook.mechanical_device__claw  a mechanical device that is curved or bent to suspend or hold or pull something
  subtype:  #grapnel_anchor  #mooring_anchor  #mushroom_anchor  #sheet_anchor
  part:  #fluke.projection  #shank.cylinder
  part of:  #vessel.craft__watercraft  a craft designed for water transportation

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