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".

Ex Input:
The girls played in the water and swam under the bridge.

Ex Output:
acceptable


Ex Input:
few clues could be found.

Ex Output:
acceptable


Ex Input:
That you will marry any particular student is not certain.

Ex Output:

acceptable