choices.label: A B C D
choices.text: space shuttle:spaceship:aircraft medic:doctor:soldier graduate student:research:student judge:law:official
explanation: "electric vehicle" can be "car", "car" can be "electric vehicle", and the intersection of "electric vehicle" and "car" is "electric car". "aircraft" includes "space shuttle" and "spaceship", and "space shuttle" and "spaceship" are one category. a "doctor" can be a "soldier", a "soldier" can be a "doctor", and the intersection of "doctor" and "soldier" is "medic". "graduate student" is a type of "student". the "law" is applied by the "judge".
relation: electric vehicle car R2.7
relation: space shuttle spaceship R2.4
relation: doctor soldier R2.7
relation: graduate student student R2.2
relation: judge law R4.4