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'.

Q: They hit the ball.

A: 1
****
Q: If my father, he comes home late, my mother always grills him.

A: 0
****
Q: John bought the picture of himself that Bill saw.

A:
1
****