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: John's quilt has a hole in its upper right-hand corner.

Output: acceptable


Input: Consider Input: I'll work on it if I can work on it.

Output: acceptable


Input: Consider Input: Palmer is a guy who for for him to stay in school would be stupid.


Output: acceptable