question: printer:scanner:external device
choices.label: A B C D
choices.text: whale:shark:fish train:motor train cloudy:rain:weather eggplant:chrysanthemum:vegetable
explanation: "printer" and "scanner" are of the same kind, and "external device" includes "printer" and "scanner". "whale" is a mammal, while "shark" is a fish, and "whale" and "shark" are different species. "train" includes "motor train". "rain" is not "weather". "eggplant" and "chrysanthemum" are the same, and "vegetable" includes "eggplant" and "chrysanthemum".
relation: printer scanner R2.4
relation: whale shark R2.6
relation: motor train train R2.2
relation: eggplant chrysanthemum R2.4