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:
An oak tree will grow from that acorn.
answer:
acceptable


question:
Nixon's behavior gave an idea for a book to every journalist living in New York.
answer:
acceptable


question:
Fifteen years represents a long period of his life.
answer:

acceptable


