instruction:
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'.
question:
Sandy taught the children the alphabet, but only got as far as the letter `` r ''.
answer:
1


question:
Emily showed himself Benjamin in the mirror.
answer:
0


question:
If students study hard, teachers will be happy.
answer:

1