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: to leave so soon would be inconvenience.

Output: acceptable


Input: Consider Input: The museum displayed no painting by Miro or drawing by Klee.

Output: acceptable


Input: Consider Input: much armchair is needed.


Output: unacceptable