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: Jill offered the ball at Bob.

Output: 0


Input: Consider Input: We investigated for bombs in the area.

Output: 0


Input: Consider Input: Alison poked Daisy's ribs.


Output: 1