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:
It's the second Monday that we get back from Easter.

Ex Output:
acceptable


Ex Input:
Martha climbed the mountain.

Ex Output:
acceptable


Ex Input:
Steve tossed the ball from the tree to the gate.

Ex Output:

acceptable