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: A tangerine isn't as much different from an orange as I'd thought.

SOLUTION: 0

PROBLEM: John is prouder of having gone than nobody expected me to believe he would be.

SOLUTION: 0

PROBLEM: A solution presented itself yesterday.

SOLUTION:
1