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: How do you wonder whether John said that Mary solved the problem?
Example Output: unacceptable

Example Input: Yesterday John talked to any woman.
Example Output: unacceptable

Example Input: While Truman doesn't want to visit every city, he does Barcelona.
Example Output:
acceptable