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 angrier that Sue gets, the more that Fred admires her.
Example Output: acceptable

Example Input: The eggs and the cream mixed.
Example Output: acceptable

Example Input: Suddenly there entered the hall an ugly old man.
Example Output:
acceptable