question: communication:mobile:metal
choices.label: A B C D
choices.text: hiring:interview:profile satellite:science and technology:scientist logistics:transportation:road camping:tent:canvas
explanation: "mobiles" has the function of "communication", and the raw material of "mobiles" includes "metal". "interviews" have the function of "recruitments", and the raw material of "interviews" is not the "profile". the product of "science and technology" is the "satellite", and "science and technology" is the research object of "scientists". the necessary link of "logistics" is "transportation", and "road" has the function of "transportation". a "tent" has the function of "camping", and the raw material of the "tent" is "canvas".
relation: mobile communication R3.3
relation: mobile metal R3.7
relation: satellite science and technology R3.10
relation: science and technology scientist R4.4
relation: transportation logistics R5.4
relation: transportation road R3.3
relation: tent camping R3.3
relation: tent canvas R3.7