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ChatGPT answered fine the first try for me:

> Mable's heart rate and blood pressure were recorded at 9 AM and 7 PM, respectively. Since she died at 11 PM, it can be assumed that she was alive at noon, as there is no information suggesting otherwise between the time of the recorded measurements and her time of death.

I was all ready to experiment with 24 hour time, times with dates, etc, but it didn't actually fail.




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