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: She speaks enough clearly to be understood.

Output: unacceptable


Input: Consider Input: I shipped the package halfway around the world.

Output: acceptable


Input: Consider Input: That Dan smokes in the office really bothers Alina.


Output: acceptable