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".

Near everyone Angleton did, Dulles stood.
unacceptable

I sent him that.
acceptable

That piano, the boy's loud playing of which drove everyone crazy, was badly out of tune.

acceptable