question: train attendant:train
choices.label: A B C D
choices.text: nurse:hospital passenger:ship programmer:programming salesperson:vending machine
explanation: a " train attendant" works on a "train". "nurse" works in a "hospital". "passengers" travel by "ship". "passenger" is not an occupation. "programming" is the job of "programmers", and "programming" is not a workplace. "salespersons" and "vending machines" have similar functions.
relation: train attendant train R3.10
relation: nurse hospital R3.10
relation: passenger ship R3.10
relation: programmer programming R3.10
relation: salesperson vending machine R2.4