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]: His expectations are lower, the higher the stakes are.
[EX A]: 1

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

[EX Q]: I don't know the boy the flowers who Mary gave to.
[EX A]:
0