question: grocery store:department store:electronic mall
choices.label: A B C D
choices.text: jade:gem:crystal fast food restaurant:restaurant:hotel pen:pencil:ballpoint pen incandescent lamp:energy-saving lamp:led lamp
explanation: "grocery stores," "department stores," and "electronic malls" are all places where goods are sold. both "jade" and "gem" are jewelry, and "crystal" belongs to "gem". "fast food restaurant" belongs to "restaurant". "pen", "pencil" and "ballpoint pen" are all stationery, and the word order is inconsistent with the query. "incandescent lamps", "energy-saving lamps" and "led lamps" are all lamps that provide lighting.
relation: jade R2.4
relation: fast food restaurant restaurant R2.2
relation: pen pencil ballpoint pen R2.4