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: John suddenly got off the bus.

SOLUTION: acceptable

PROBLEM: While Rusty might leave in order to please Mag, he won't his father.

SOLUTION: unacceptable

PROBLEM: The contestant who won the first prize, who is the judge's brother-in-law, sang dreadfully.

SOLUTION:
acceptable