instruction:
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'.
question:
Joe is taller than Mary.
answer:
1


question:
Mary has never kissed a man who is taller than John.
answer:
1


question:
I'll work on it if you do.
answer:

1