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".

[Q]: I suspect that the contract which I want to peruse before filing away the deed may some loopholes.
[A]: acceptable


[Q]: Stephen believed the cat to be out of the bag.
[A]: acceptable


[Q]: That anybody ever left at all is not certain.
[A]:
acceptable