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: The rope stretched over the pulley.

SOLUTION: 1

PROBLEM: Every student has to come up with three arguments that show that some condition proposed by Bill is wrong.

SOLUTION: 1

PROBLEM: We hope the availability of such a vaccine in ten years.

SOLUTION:
0