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 drunk hugged the lamppost.
[EX A]: 1

[EX Q]: Fred threw the ball behind the tree.
[EX A]: 1

[EX Q]: I believed that Otto was wearing this hat.
[EX A]:
1