question: Washington:Oregon
choices.label: A B C D
choices.text: London:England beijing:shanghai HongKong:Taiwan xinjiang:tibet
explanation: both "Washington" and "Oregon" are states in America, and the two states are geographically adjacent. "London" is an integral part of "England", "London" is the capital  of "England", and "London" is not a country. both "beijing" and "shanghai" are cities. "beijing" and "shanghai" are not geographically adjacent. "HongKong" and "Taiwan" are both provinces in china, but "shandong" and "Taiwan" are not geographically adjacent. both "xinjiang" and "tibet" are provinces in china, and the two provinces are geographically adjacent.
relation: Washington Oregon R2.4
relation: London Taiwan R2.3
relation: beijing shanghai R2.4
relation: HongKong Taiwan R2.4
relation: xinjiang tibet R2.4