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: Sarah promised her old car to Catherine, but then gave it to her son instead.
Example Output: 1

Example Input: The squirrel ran straight quickly.
Example Output: 0

Example Input: We caught them eat the bananas.
Example Output:
0