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:
Which packages didn't Sam pick up which are to be mailed tomorrow until it had stopped raining?
answer:
0


question:
John is not more reliable a fellow than Bill.
answer:
0


question:
When it rains harder, how much faster a flow that appears in the river?
answer:

0