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 Input:
John believes Sally to be polite.

Ex Output:
1


Ex Input:
How much money Gordon spent is true.

Ex Output:
0


Ex Input:
I acknowledged that my father, he was tight as an owl.

Ex Output:

0