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:
Joan knew the answer.

Ex Output:
1


Ex Input:
Who did Plato listen to DP Demosthenes' oration about?

Ex Output:
0


Ex Input:
My heart is pounding my brother.

Ex Output:

0