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: I throw you a lifeline and you giggle.

SOLUTION: 1

PROBLEM: That Jack ever slept is impossible.

SOLUTION: 1

PROBLEM: Mary left the room angry.

SOLUTION:
1