question: car:chassis:engine
choices.label: A B C D
choices.text: car:sedan:truck car body:doors:windows lights:license plate:tires car:box type:ship type
explanation: the "chassis" and the "engine" are the components of the "car". both "sedan" and "truck" are a type of "car". the "doors" and "windows" are part of the "car body". "lights", "license plates" and "tires" are all components of a car. both "box type" and "ship type" refer to the type of "car" body.
relation: car chassis engine R2.3
relation: chassis engine R2.4
relation: car sedan truck R2.2
relation: car body doors windows R2.3
relation: doors windows R2.4
relation: lights license plate tires R2.4
relation: box type ship type R2.4
relation: car box type ship type R3.10