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]: That the fuzz wanted him worried John, but that the fuzz wanted John didn't worry Mary.
[A]: 1


[Q]: I don't know the people present.
[A]: 1


[Q]: The Gorgon is easy to believe the claim that Perseus slew.
[A]:
0