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: I insist on seeing through all the students who had started out the term in my class.

Output: unacceptable


Input: Consider Input: John locked Fido in the garage and Mary did so in the room.

Output: unacceptable


Input: Consider Input: How long did this fit of generosity last and who gave what to whom?


Output: acceptable