choices.label: A B C D
choices.text: curtains:windows wire:table lamp leather:leather shoes steel:computer
explanation: "table" can be crafted from "wood". "window" can be blocked by a "curtain", and the raw material of the "window" is not a "curtain". it is the "wire" that provides the power device for the "table lamp", and the raw material of the "table lamp" is not the "wire". "leather shoes" can be crafted from "leather". "steel" and "computer" have no obvious logical relationship.
relation: wood table R3.7
relation: leather leather shoes R3.7