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'.

Example Input: Jill offered the ball at Bob.
Example Output: 0

Example Input: Wanda taught the students that the earth was round.
Example Output: 1

Example Input: John tries to be easy to get along with.
Example Output:
1