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: At Mrs. Parker's lodged an old woman.

Output: 0


Input: Consider Input: The old dog died partway.

Output: 0


Input: Consider Input: John had an error in the proof Sarah presented.


Output: 0