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".

Harry got to be as much of the celebrity as his father.
unacceptable

The more Fred is obnoxious, the less you should pay attention to him.
acceptable

Learning to use a language freely and fully is a lengthy and arduous process.

acceptable