instruction:
You will be given a sentence. Check whether the sentence is grammatically correct and is meaningful. If the sentence is grammatically correct, then answer with '1', otherwise answer with '0'.
question:
The average age at which people begin to need eyeglasses vary considerably.
answer:
0


question:
Bill didn't confirm that Roger had eaten anything.
answer:
0


question:
The director sparkled the lights.
answer:

0