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".

Those books slide across the table easily.
acceptable

Who did you wonder saw Kim?
unacceptable

Lilly should buy salmon and Mary should buy salmon too.

acceptable