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'.

Input: Consider Input: Oliver ascribed his longevity there.

Output: 0


Input: Consider Input: Fred threw the ball behind the tree.

Output: 1


Input: Consider Input: Only the best students would he give this book.


Output: 0