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".

He's a too reliable man.
unacceptable

The angrier that Sue gets, the more that Fred admires her.
acceptable

Sharon flinched.

acceptable