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".

Input: Consider Input: He impresses his friends all as pompous.

Output: unacceptable


Input: Consider Input: How do you wonder whether John said that Mary solved the problem?

Output: unacceptable


Input: Consider Input: The cops spoke to the janitor about it yesterday, that robbery.


Output: acceptable