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 refused the offer proudly.

SOLUTION: 1

PROBLEM: The hiker will reach the top of the mountain for an hour.

SOLUTION: 0

PROBLEM: Drowning cats are hard to rescue.

SOLUTION:
1