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".

Q: I know a boy mad at John.

A: acceptable
****
Q: I was surprised that he stole the watch, in as far as that was a daring thing to do.

A: acceptable
****
Q: Mike expected Greg incorrectly to take out the trash.

A:
acceptable
****