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".

I washed yourself.
unacceptable

She knocked himself on the head with a zucchini.
unacceptable

Romeo conceded that he and Juliet were going steady.

acceptable