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'.
--------
Question: The fence straddles the sidewalk.

Answer: 1


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

Answer: 0


Question: It is this hat that it is certain that he was wearing.

Answer:
1