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: The oil separated from the vinegar.

Output: 1


Input: Consider Input: Wanda taught the students that the earth was round.

Output: 1


Input: Consider Input: This rock is too heavy for me to begin to decide about helping Bob to try to pick it up.


Output: 1