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: That Jack ever slept is impossible.

A: 1
****
Q: The hardest that that it has snowed here is believed was last January 12th.

A: 0
****
Q: The clown amused the children.

A:
1
****