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".

Whether this is feasible hasn't yet been determined.
acceptable

The manner which Jack disappeared in was creepy.
unacceptable

The shirts which I went to the movies and didn't pick up will cost us a lot of money.

unacceptable