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: Ron wanted to wear a tuxedo to the party, but wear a tuxedo to the party Caspar couldn't decide whether to.

Output: 0


Input: Consider Input: We are knowing this theory.

Output: 0


Input: Consider Input: Who will be offended if we don't invite which philosopher?


Output: 1