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".

Ex Input:
You will Bob believe.

Ex Output:
unacceptable


Ex Input:
The more Fred is obnoxious, the less you should pay attention to him.

Ex Output:
acceptable


Ex Input:
John, because he's such a nice guy, would like that.

Ex Output:

acceptable