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: Max offered the victims help, but they refused his offer.

SOLUTION: 1

PROBLEM: To whom did you give the ball?

SOLUTION: 1

PROBLEM: Mary is not running the marathon.

SOLUTION:
1