question: bird:wings
choices.label: A B C D
choices.text: sheep:dog fish:fin locust:cicada cattle:grass
explanation: "wings" are part of "birds". both "sheep" and "dog" are animals, and "dog" is not part of "sheep". "fin" is part of "fish". "cicada" can also be called "locust", and "cicada" is not part of locust". "cattle" can eat "grass", and "grass" is not part of a "cattle".
relation: wings bird R2.3
relation: sheep dog R2.4
relation: fin fish R2.3
relation: locust cicada R2.1
relation: cattle grass R4.4