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: Whose book did you find?
Example Output: 1

Example Input: They said nobody would pay up, but I know a boy who did pay up.
Example Output: 1

Example Input: Jill offered the ball at Bob.
Example Output:
0