question: dumpling:flour
choices.label: A B C D
choices.text: pencil:paper clothes:fabric athlete:coach aircraft:missile
explanation: the raw material of "dumpling" is "flour". both "pencil" and "paper" belong to stationery. "pencil" can write on "paper", but the raw material of "pencil" is not "paper". the raw material of "clothes" is "fabric". the "coach" is the mentor of the "athlete", but the raw material of the "athlete" is not the "coach". an "aircraft" can be loaded with "missiles", but the raw materials of the "aircraft" are not "missiles".
relation: dumpling flour R3.7
relation: pencil paper R2.6
relation: fabric clothes R3.7