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]: Susan whispered Rachel the news.
[A]: unacceptable


[Q]: Mag Wildwood came to introduce the bartender but I came precisely not to.
[A]: acceptable


[Q]: What we are using is their teaching material.
[A]:
acceptable