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: They promised it to rain.

Output: 0


Input: Consider Input: No student, who wears socks, is a swinger.

Output: 0


Input: Consider Input: There are seven holes in the door and window.


Output: 1