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: The architect selected a house for the couple.

Output: acceptable


Input: Consider Input: It is the folks up at corporate headquarters who the sooner you solve this problem, the more easily you'll satisfy.

Output: unacceptable


Input: Consider Input: In this cave was found an ancient treasure trove.


Output: acceptable