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]: The sign warned against skating on the pond.
[EX A]: 1

[EX Q]: Himself laughs.
[EX A]: 0

[EX Q]: Mary questioned Joe's desire to eat cabbage, but only after I had questioned Sally's desire to.
[EX A]:
0