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:
Paula swatted Deirdre's back.

Ex Output:
1


Ex Input:
What kind cf parakeets are they investigating all people owning?

Ex Output:
0


Ex Input:
Why he knows the answer!

Ex Output:

0