instruction:
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".
question:
John suddenly got off the bus.
answer:
acceptable


question:
Ron wanted to be wearing a tuxedo to the party, but Caspar didn't know whether to be.
answer:
unacceptable


question:
The book costs $10.
answer:

acceptable