#dock.body_part  the solid bony part of the tail of an animal as distinguished from the hair
  supertype:  #body_part  any part of an organism such as an organ or extremity
  part of:  #tail  the posterior part of the body of a vertebrate especially when elongated and extending beyond the trunk or main part of the body
     part of:  #vertebrate__craniate  animals having a bony or cartilaginous skeleton with a segmented spinal column and a large brain enclosed in a skull or cranium

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