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: Willy is taller than Bill by as much as I know a boy who thinks that Bill is taller than Dan.

Output: unacceptable


Input: Consider Input: Sally eats more the stuff.

Output: unacceptable


Input: Consider Input: Handsome though my friends suggested that Mary thinks that Tom is, I still won't date him.


Output: unacceptable