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:
They hit the ball.

Ex Output:
1

Ex Input:
They put the book in the box.

Ex Output:
1

Ex Input:
John didn't hit a home run, but I know a woman who did.

Ex Output:
1