question: farmer:farm tool:land
choices.label: A B C D
choices.text: track:relay:sports field experimenter:apparatus:worktop lesson plan:teacher:podium cabby:bus:taxi
explanation: "farmers" use "farmer tools" on the "land". the "farmer" is an occupation, "farmer tools" are tools, and "land" is the place of work. a "track" is not a profession, and a "relay" is not a tool. a "track" is part of a "sports field". "experimenters" use "apparatuses" on the "worktop". "experimenters" is an occupation, "apparatus" is the tool, and "worktop" is the work place. the teaching tool of "teachers" is the "teaching plan", and "teacher" is a profession, not a tool. both "bus" and "taxi" are means of transportation, and "bus" is not a profession.
relation: farmer farm tool land R3.10
relation: experimenter apparatus worktop R3.10
relation: bus taxi R2.4