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: All native speakers have a grammatical competence which can generate an infinite set of grammatical sentences from a finite set of resources.

SOLUTION: 1

PROBLEM: The old dog died partway.

SOLUTION: 0

PROBLEM: Jane imagines Bill claims John believes Mary thinks Tom is honest.

SOLUTION:
1