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:
This map is what he wants.

Ex Output:
1


Ex Input:
Sarah promised her old car to Catherine, but then gave it to her son instead.

Ex Output:
1


Ex Input:
My binoculars were given to that girl by him.

Ex Output:

1