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'.

Example Input: A proof was given that the claim that John had lied had been made.
Example Output: 1

Example Input: At Mrs. Parker's lodged an old woman.
Example Output: 0

Example Input: We expect the dentist to examine ourselves.
Example Output:
0