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 police read the detainees' rights to them, but not a single one was paying attention.
Example Output: 1

Example Input: Seven more ones came in after ten soldiers had left.
Example Output: 0

Example Input: John that we are looking for showed up.
Example Output:
0