question: china:vietnam:laos
choices.label: A B C D
choices.text: france:switzerland:italy china:vietnam:japan usa:canada:mexico brazil:argentina:panama
explanation: "china", "vietnam" and "laos" are countries bordering each other. "france", "switzerland" and "italy" are countries bordering each other. "china" and "japan" are separated from each other by the sea. geographically, "mexico" and "canada" do not share borders. geographically, "panama" and "brazil" do not share borders.
relation: china vietnam laos R2.6
relation: france switzerland italy R2.6