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: Stephen believed the cat to be out of the bag.

Output: acceptable


Input: Consider Input: John seems will win.

Output: unacceptable


Input: Consider Input: I watched the Indians who the man who had been my advisor in my freshman year had advised me to study when I got to Utah talk.


Output: unacceptable