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: the branch dropped its apple free.

Output: acceptable


Input: Consider Input: The trainer fed the steaks all to the lions.

Output: acceptable


Input: Consider Input: Sam didn't pick those packages up until it had stopped raining which are to be mailed tomorrow.


Output: unacceptable