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: His second book came out earlier this year and became an instant best-seller.
Example Output: 1

Example Input: To whom did you give the ball?
Example Output: 1

Example Input: Although Bob may not be a nut, many people have claimed and I think so too.
Example Output:
0