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".

Is likely Jean to leave.
unacceptable

The thief stole Mr. Smith the painting.
unacceptable

John thinks what Mary bought.

unacceptable