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".

[EX Q]: Yesterday John talked to any woman.
[EX A]: unacceptable

[EX Q]: I have some voice exercises to play the guitar and sing.
[EX A]: unacceptable

[EX Q]: Bob proved this set is recursive.
[EX A]:
acceptable