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".

Input: Consider Input: She knocked herself on the head with a zucchini.

Output: acceptable


Input: Consider Input: He threw the letter into the wastebasket.

Output: acceptable


Input: Consider Input: The cloth swatted the fly.


Output: unacceptable