question: nanjing university:southeast university
choices.label: A B C D
choices.text: studying abroad:entrance zhejiang:yangtze river general motors:ford spacecraft:machine
explanation: "nanjing university" and "southeast university" belong to university. "studying abroad" means going to a foreign country to receive education, and "entrance" means entering a grade or school higher than the original one. "yangtze river" flows through "zhejiang" province, and "zhejiang" and "yangtze river" are not in the same category. "general motors" and "ford" are companies. "spacecraft" belongs to "machines". "spacecraft" and "machines" are not in the same category.
relation: nanjing university southeast university R2.4
relation: zhejiang yangtze river R3.10
relation: general motors ford R2.4
relation: spacecraft machine R2.2