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".

Q: We persuaded them to examine themselves.

A: acceptable
****
Q: It was with a great deal of regret that I vetoed your proposal.

A: acceptable
****
Q: The man standing over there's hat impressed me greatly.

A:
acceptable
****