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".
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Question: Which problem do you wonder whether John said that Mary solved?

Answer: unacceptable


Question: Suddenly an ugly old man entered the hall.

Answer: acceptable


Question: Raccoons destroyed the garden.

Answer:
acceptable