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 city and to which conference did Bill go to?

Ex Output:
unacceptable


Ex Input:
You must pick any flower in this bed.

Ex Output:
unacceptable


Ex Input:
I inquired that John like his beer.

Ex Output:

unacceptable