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: John's plan to go abroad is nice.

SOLUTION: 1

PROBLEM: He can't pay taxes, can he?

SOLUTION: 1

PROBLEM: It is certain that John has loved Mary.

SOLUTION:
1