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".

Wash yourselves.
acceptable

Nora sent at the book to Peter.
unacceptable

Brandon read every book that Megan did.

acceptable