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".

That John passed surprised her, didn't it?
acceptable

John's refusal of the offer was shocking.
acceptable

The inspector analyzed the soundness in the building.

unacceptable