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".

[Q]: John's refusal of the offer was shocking.
[A]: acceptable


[Q]: John's quilt has a hole in its upper right-hand corner.
[A]: acceptable


[Q]: They may grow as much as bamboo high.
[A]:
unacceptable