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:
Smith threw the first baseman the ball.

Ex Output:
acceptable


Ex Input:
A solution presented itself yesterday.

Ex Output:
acceptable


Ex Input:
The hardest that I think I remember him ever telling me that he had heard of it snowing around here was last January 12th.

Ex Output:

acceptable