#coccyx__tail_bone  the end of the vertebral column in humans and tailless apes
  supertype:  #bone__os  rigid connective tissue that makes up the skeleton of vertebrates
  part of:  #spinal_column  #pelvis
  part:  #coccygeal_vertebra__coccygealvertebra__caudal_vertebra  one of 4 vertebrae in the human coccyx

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