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: That the fuzz wanted him worried John, but that the fuzz wanted John didn't worry Mary.

Answer: 1


Question: It is not entirely obvious if, Mary listens to the Grateful Dead, she gets depressed.

Answer:
0