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: That Sam didn't pick those packages up is possible which are to be mailed tomorrow.

SOLUTION: 0

PROBLEM: John often kisses Mary.

SOLUTION: 1

PROBLEM: That you will marry any particular student is not certain.

SOLUTION:
1