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 Input:
We investigated bombs in the area.

Ex Output:
0


Ex Input:
Oliver ascribed his longevity there.

Ex Output:
0


Ex Input:
John has been captured by the cops and I'm afraid he'll talk.

Ex Output:

1