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: Marlene dressed herself.
Example Output: acceptable

Example Input: The men arrived all.
Example Output: unacceptable

Example Input: Maxwell isn't half the doctor that his sister is a psychologist and his father was.
Example Output:
unacceptable