question: football:sports
choices.label: A B C D
choices.text: undergraduate:student watermelon:fruit fox:animal mahjong:entertainment
explanation: "football" is a kind of "sports" gear. "undergraduate" belong to "students", and "undergraduate" are not appliances. "watermelon" belongs to "fruit", and "watermelon" is a fruit, not a utensil. "fox" belongs to "animal", and "fox" is an animal, not a utensil. "mahjong" is a kind of "entertainment" equipment.