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 concluded Bill to be a fool.

SOLUTION: 0

PROBLEM: This key won't open the Jock.

SOLUTION: 1

PROBLEM: Bob proved this set is recursive.

SOLUTION:
1