#roadster__runabout__two-seater__twoseater  an open automobile having a front seat and a rumble seat
  exclusion:  #station_wagon  #convertible  #hardtop  #coupe  #minicar  #minivan  #jeep  #limousine  #compact_car  #subcompact_car  #touring_car
  supertype:  pm#car_with_a_special_shape (pm)
  part:  #rumble_seat  a folding outside seat in the back of some early cars

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