#passenger_car__passengercar__coach__carriage  a railcar where passengers ride
  supertype:  railroad_car__car__railcar__railway_car__railwaycar  a wheeled vehicle adapted to the rails of railroad; "three cars had jumped the rails"
  subtype:  dining_car  nonsmoking_car  parlor_car  Pullman_car  sleeping_car  smoking_car
  member of:  passenger_train
  part:  car_seat__carseat  a seat in a 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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