TASK DEFINITION: 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".
PROBLEM: The ship's sinking to collect the insurance was very devious.

SOLUTION: unacceptable

PROBLEM: The electrode was struck by ions.

SOLUTION: acceptable

PROBLEM: Every essay which she's written and that I've read is on that pile.

SOLUTION:
acceptable