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 happy, happy, happy, happy, happy, happy man sang a song.
[A]: 1


[Q]: Max offered the victims help, but they refused his offer.
[A]: 1


[Q]: It struck John that it was so.
[A]:
1