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".

Which problem do you wonder whether John said that Mary solved?
unacceptable

The fish boned.
unacceptable

I like circus performers.

acceptable