choices.label: A B C D
choices.text: pen:paper stationery:pencil-box dishes:radish aircraft:cannon
explanation: a "book" can be made of "paper". both "pen" and "paper" belong to stationery, but "pen" cannot be made of "paper". the "pencil-box" is a kind of "stationery", but "stationery" cannot be made from "pencil-boxes". "dishes" can be cooked by using "radishes". "cannon" and "aircraft" have no obvious logical relationship.