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: That few boys came upset any of the teachers.
Example Output: unacceptable

Example Input: Nixon's behavior gave an idea for a book to every journalist living in New York.
Example Output: acceptable

Example Input: As much of a man is here.
Example Output:
unacceptable