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:
What does John wonder Mary bought?

Ex Output:
0


Ex Input:
They promised it to rain.

Ex Output:
0


Ex Input:
The more I talk to Joe, the less about linguistics I am inclined to think Sally has taught him to appreciate.

Ex Output:

1