question: space station:astronaut
choices.label: A B C D
choices.text: laboratory:R&D institutions school:parents television station:host amusement park:tourists
explanation: one of the "astronauts" working places is the "space station". the "laboratory" exists in the "R&D institutions", and the "laboratory" is an integral part of the "R&D institutions". the workplace of "parents" is not "school". one of the working places of the "host" is "TV station". "amusement park" is for "tourists" to play in.
relation: space station astronaut R3.6
relation: laboratory R&D institutions R2.3
relation: television station host R3.6