instruction:
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:
I know a boy mad at John.
answer:
acceptable


question:
to leave so soon would be inconvenience.
answer:
acceptable


question:
The person with whom he felt most comfortable left.
answer:

acceptable