You're given a sentence and your task is to classify whether the sentence is acceptable or not. Any sentence which is grammatically correct, has a naturalistic text, is written by a native speaker and which minimizes superfluous content is acceptable, otherwise unacceptable. If the sentence is acceptable then write "acceptable", otherwise "unacceptable".

I've never seen the one man taller than my father.
acceptable

Who do you wonder what bought?
unacceptable

Fluffy is sick, which it is certain that no one here realizes.

acceptable