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".

Brown equipped a camera at Jones.
unacceptable

It's we go to the meeting, that Sally will tell us when.
unacceptable

They gave the reports which he had brought with him to me.

acceptable