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".

Example Input: The more contented the nurses began to believe that we were going to pretend to be, the more angry we grew at the doctors.
Example Output: unacceptable

Example Input: He's a too reliable man.
Example Output: unacceptable

Example Input: The moral destruction of the president was certainly not helpful.
Example Output:
acceptable