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


[Q]: John has been captured by the cops and I'm afraid he'll talk.
[A]: 1


[Q]: Joan plays and sings folk songs a wonderful old guitar from Spain.
[A]:
0