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'.

[EX Q]: Do you know the boy who Mary saw?
[EX A]: 1

[EX Q]: Her stepmother always clad her in black.
[EX A]: 0

[EX Q]: The owl hated the evil and the wise eagle.
[EX A]:
0