question: teach:learn:educating
choices.label: A B C D
choices.text: buy:sell:deal good:bad:good or bad positive:large:upright cloudy:dark:gloomy
explanation: "educating" consists of "teaching" and "learning", which correspond to each other in "educating". the subjects of "teaching" and "learning" are different. a "deal" consists of "buying" and "selling", which correspond to each other in the "deal". the subjects of "buying" and "selling" actions are different. "good" and "bad" are actions initiated by different subjects. both of them are adjectives. there is no obvious logical relationship between "positive" and "big". "couldy" and "dark" are actions initiated by different subjects. both of them are adjectives.
relation: teach learn R3.10
relation: buy sell R3.10