choices.label: A B C D
choices.text: grain:feed foaming agent:sponge alcohol:wines steel:automobile
explanation: the additive required to make "steamed bread" is "baking powder". the raw material of "feed" is "grain", and "grain" is not an additive of "feed". the additive required to make a "sponge" is the "foaming agent". "alcohol" is a part of "wines", and "alcohol" is not an additive of "wines". the raw material of "automobiles" is "steel", and "steel" is not the additive of "automobiles".
relation: baking powder steamed bread R3.10
relation: grain feed R3.7
relation: foaming agent sponge R3.10
relation: alcohol wines R2.3
relation: steel automobile R3.7