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: Here is the snowball which I chased the boy who threw at our teacher.

A: 0
****
Q: A solution presented itself yesterday.

A: 1
****
Q: The men mined the gold.

A:
1
****