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]: When I am awake at that time and Susan is asleep, Bill will leave.
[EX A]: 0

[EX Q]: The witch went into the forest and thereby vanished.
[EX A]: 1

[EX Q]: His girlfriend bought this computer for him.
[EX A]:
1