question: ethics:behaviour
choices.label: A B C D
choices.text: regulation:corruption value:price law:rights contract:justice
explanation: "ethics" constrains "behavior", and "behavior" is a neutral word. "regulation" constraints, "corruption", "corruption" are derogatory terms. "value" determines "price", not a constraint. "law" binds "right", and "right" is a neutral word. there is no obvious logical relationship between "contract" and "justice".
relation: ethics behaviour R3.10
relation: law rights R3.10