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: What do you believe that iron is to be a fact well known to virtually everybody?
Example Output: 0

Example Input: The happy, happy, happy, happy, happy, happy man sang a song.
Example Output: 1

Example Input: On whom does Dana believe Chris knows Sandy trusts?
Example Output:
0