question: troops:fodder
choices.label: A B C D
choices.text: worker:salary plants:rain tv:remote control engine:fuel
explanation: "troops" consume "fodder", and "fodder" provide source power for "troops". "workers" receive "wages", not consumption, and it is not "wages" that provide power for "workers". "plants" absorb "rain", not consume it. "tv" and "remote control" are used together, and "tv" does not consume "remote control". the "engine" consumes "fuel", and the "fuel" provides the source power for the "engine".
relation: troops fodder R3.10
relation: tv remote control R3.10
relation: engine fuel R3.10