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]: We are knowing this theory.
[A]: 0


[Q]: That the march should go ahead and that it should be cancelled has been argued by different people at different times.
[A]: 0


[Q]: Every student in Mary's class, whoever they were, happened to vote Republican.
[A]:
0