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".

The truck rumbled into the driveway.
acceptable

Carol cut her thumb.
acceptable

The bus hopes to be here at five.

unacceptable