question: california:nevada
choices.label: A B C D
choices.text: utah:seattle texas:wisconsin san francisco:detroit washington:oregon
explanation: "california" and "nevada" are two states, and they border each other. "utah" is a state, while "seattle" is a city, and the two are not both states. "texas" and "wisconsin" are two provinces, but they do not border. "san francisco" and "detroit" are both cities, and the two do not border. "washington" and "oregon" are two states, and the two border each other.
relation: california nevada R2.6
relation: san francisco detroit R2.6
relation: washington oregon R2.6