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: My father, that he's lived here all his life is well-known to the cops.
Example Output: acceptable

Example Input: Mary has never kissed a Man taller than John.
Example Output: acceptable

Example Input: I gave myself the bucket of ice cream.
Example Output:
acceptable