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'.

[EX Q]: He looked up it
[EX A]: 0

[EX Q]: Sandy taught the children the alphabet, but only got as far as the letter `` r ''.
[EX A]: 1

[EX Q]: Fluffy is sick, which I slapped a boy who wouldn't acknowledge.
[EX A]:
0