#car_seat__carseat  a seat in a passenger car
  supertype:  seat  any support where you can sit (especially the part of a chair or bench etc. on which you sit); "he dusted off the seat before sitting down"
  part of:  passenger_car
  part:  backrest__back  a support that you can lean against while sitting; "the back of the dental chair was adjustable"
  part:  head_restraint__headrest  a cushion attached to the top of the back of an automobile's seat to prevent whiplash
  part:  seat  any support where you can sit (especially the part of a chair or bench etc. on which you sit); "he dusted off the seat before sitting down"
  part:  seat_belt  a safety belt used in a car or plane to hold you in your seat in case of an accident

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