TASK DEFINITION: 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'.
PROBLEM: Fluffy is sick, which it is certain that no one here realizes.

SOLUTION: 1

PROBLEM: This key won't open the Jock.

SOLUTION: 1

PROBLEM: John tries to meet not Mary.

SOLUTION:
0