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: Carol carved the stone.

Output: acceptable


Input: Consider Input: The girl who the by works in a skyscraper and in a quonset but has a dimple on her nose.

Output: unacceptable


Input: Consider Input: The old cart banged against the new cart.


Output: acceptable