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: Which packages didn't Sam pick up which are to be mailed tomorrow until it had stopped raining?

SOLUTION: 0

PROBLEM: We believe that he is quite reasonable.

SOLUTION: 1

PROBLEM: Susan bought her birthday some flowers.

SOLUTION:
0