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:
All native speakers have a grammatical competence which can generate an infinite set of grammatical sentences from a finite set of resources.

Ex Output:
1


Ex Input:
The child is impossible to teach him.

Ex Output:
0


Ex Input:
Which pictures of Earl did he see?

Ex Output:

1