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: Fred threw the ball under the porch.

Output: acceptable


Input: Consider Input: Sorry, I gave last week.

Output: acceptable


Input: Consider Input: Amanda carried the package.


Output: acceptable