question: related:irrelevant
choices.label: A B C D
choices.text: normal:incorrect son:unfilial son teacher:student stop:endless
explanation: "related" and "irrelevant" conflict. "normal" refers to the general situation, and "incorrect" refers to the fact that it does not conform to the facts or the point of view is wrong, and there is no obvious logical relationship between the two. some "sons" are "unfilial sons", and some "unfilial sons" are "sons". the "teacher" teaches the "student". "stop" and "endless" conflict.
relation: related irrelevant R2.5
relation: son unfilial son R2.7
relation: teacher student R4.2
relation: stop endless R2.5