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]: We peered through the screen.
[A]: acceptable


[Q]: Ann copied the manuscript, but she didn't finish it.
[A]: acceptable


[Q]: John has sung a song and Mary has too.
[A]:
acceptable