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".
--------
Question: John is prouder of having gone than I expected you to believe he would be of not having fallen asleep.

Answer: acceptable


Question: Sally is such a fool as people think.

Answer: unacceptable


Question: The persons on whom we kept tabs all proved to be innocent.

Answer:
unacceptable