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: Anson left before Jenny saw himself.

Output: 0


Input: Consider Input: They praised the volunteers' dedication.

Output: 1


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


Output: 0