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 believed that he is honest.

Output: acceptable


Input: Consider Input: I pushed at the table.

Output: acceptable


Input: Consider Input: The passengers who had known that the train was not on fire said that those who had thought so had barricaded themselves in the bathrooms.


Output: acceptable