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'.

Example Input: The teapot was broken by the child by accident.
Example Output: 1

Example Input: The thief chased down the street.
Example Output: 0

Example Input: John rolled the ball perfectly down the hill.
Example Output:
1