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: What happened was they knew his parents.

Output: 0


Input: Consider Input: My mother baked a cake for me.

Output: 1


Input: Consider Input: I insist on seeing all the student' through who started out the term in my class.


Output: 1