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]: The men arrived all.
[A]: unacceptable


[Q]: The more food Mary knows a man that eats the poorer she gets.
[A]: unacceptable


[Q]: The children will have been being entertained.
[A]:
acceptable