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 Q]: No candidate can predict how many people will vote for him.
[EX A]: 1

[EX Q]: John believes Sally to be polite.
[EX A]: 1

[EX Q]: Louis was sent a book to.
[EX A]:
0