question: rice:grain:planting
choices.label: A B C D
choices.text: pen:stationery:painting fruit:watermelon:cutting talent:resource:cultivating coal:petroleum:mining
explanation: "rice" is a kind of "grain", and "rice" needs to be "planted". "pen" is a kind of "stationery", while "painting" needs a "pen". "watermelon" is a type of "fruit" and the words are in the wrong order. "talent" is a kind of "resource", and "talent" will be "cultivated". both "coal" and "petroleum" are non-renewable resources, and "coal" and "petroleum" are one category.
relation: rice grain R2.2
relation: pen stationery R2.2
relation: watermelon fruit R2.2
relation: talent resource R2.2
relation: coal petroleum R2.4