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: Ellen and Helen talked.

Output: 1


Input: Consider Input: Did Merv show up and did you play chess?

Output: 1


Input: Consider Input: They rowed along the canals of Venice.


Output: 1