question: shanghai:beijing
choices.label: A B C D
choices.text: language:chinese phone:refrigerator books:teachers fiction:characters
explanation: "shanghai" and "beijing" are both cities. "chinese" belongs to "language". both "phone" and "refrigerator" are household appliances. "teachers" use "books" in teaching. "characters" are part of a "fiction".
relation: shanghai beijing R2.4
relation: chinese language R2.2
relation: phone refrigerator R2.4
relation: books teachers R3.10
relation: characters fiction R2.3