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:
Penny rowed across the lake.

Ex Output:
acceptable


Ex Input:
Mary reported John to have loved her.

Ex Output:
acceptable


Ex Input:
Sodium is a little too peppy for me to want to try mixing and water in a teacup.

Ex Output:

unacceptable