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 Q]: Sally is such a fool as people think.
[EX A]: unacceptable

[EX Q]: I'll work on it if I can work on it.
[EX A]: acceptable

[EX Q]: What John could do is not visit Sally.
[EX A]:
acceptable