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: Fred threw the ball behind the tree.

A: 1
****
Q: The squirrel ran straight quickly.

A: 0
****
Q: When I am awake and Susan is asleep, Bill will leave.

A:
1
****