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".

Ex Input:
Which packages didn't Sam pick up which are to be mailed tomorrow until it had stopped raining?

Ex Output:
unacceptable


Ex Input:
The glass cut Rachel's toe.

Ex Output:
acceptable


Ex Input:
Kim is happy and Sandy is too.

Ex Output:

acceptable