question: texas:california:san francisco
choices.label: A B C D
choices.text: beijing:shanghai:the yangtze river aerospace:spacecraft:astronaut canada:uk:london india:japan:new delhi
explanation: "texas" and "california" are both states, and "san francisco" is part of "california". "germany" is a country, but "shanghai" is a city. the administrative status of "germany" and "shanghai" are different. "aerospace" requires "spacecrafts". "canada" and "uk" are both countries, and "london" is a part of "uk". "india" and "japan" are both countries, but "new delhi" is part of "india", not "japan".
relation: texas california R2.4
relation: california san francisco R2.3
relation: aerospace spacecraft R3.10
relation: canada uk R2.4
relation: uk london R2.3
relation: india japan R2.4