question: bridge:riverbank
choices.label: A B C D
choices.text: letter:post office stairs:floor phone:communication train:destination
explanation: "riverbank" is linked via "bridge" "post office" can mail "letters" “floors” are linked via “stairs” the function of a "phone" is to "communicate" the "train" arrives at the "destination", not the connection.
relation: bridge riverbank R3.10
relation: letter post office R3.10
relation: stairs floor R3.10
relation: phone communication R3.3