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:
Oliver ascribed his longevity there.

Ex Output:
0

Ex Input:
The hardest that that it has snowed here is believed was last January 12th.

Ex Output:
0

Ex Input:
John could not visit Sally.

Ex Output:
1