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:
How do you wonder whether John said that Mary solved the problem?
answer:
unacceptable


question:
Ellen conferred to Helen.
answer:
unacceptable


question:
Heat radiates from the sun.
answer:

acceptable