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'.

Q: John refused the offer proudly.

A: 1
****
Q: Enrico, who is the smartest of us all, got the answer in seven seconds.

A: 1
****
Q: Oliver mentioned Charles the problem.

A:
0
****