question: cement:houses
choices.label: A B C D
choices.text: cloth:clothes sand:desert wood:rebar printer:computer
explanation: "houses" are built with "cement", which is the raw material for building "houses". "clothes" are made with "cloth", and "cloth" is the raw material for making "clothes". "sand" is a component of "desert", and "desert" is not made of "sand". "wood" and "rebar" are both materials for building houses, "rebar" is not made of "wood" both "printer" and "computer" are office equipment, and "computer" is not made with "printer".
relation: cement houses R3.7
relation: cloth clothes R3.7
relation: sand desert R2.3
relation: wood rebar R2.4
relation: printer computer R2.4