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".

to leave so soon would be inconvenience.
acceptable

Smith inscribed the ring with his name.
acceptable

John talked to any powerful politician.

unacceptable