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: They read the every book.
Example Output: unacceptable

Example Input: To behave oneself in public is expected.
Example Output: acceptable

Example Input: I have wanted to meet for many years the man who spent so much money planning the assassination of Kennedy.
Example Output:
acceptable