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:
Harry coughed us into a fit.
answer:
0


question:
Willy is taller than I know a boy who is.
answer:
0


question:
Did his having played the piano surprise you?
answer:

1