Hi. I bought the Kindle Paperwhite in Feb 2020 from Amazon. When I look up the serial number, I cannot tell if it is the Kindle Paperwhite 10th generation 2018 or the Kindle Paperwhite 10th generation 2019 model. Help. the serial number is G000 PP12. I called Amazon but the person that called me was not very knowledgeable about anything. Can you lead me in the right direction on finding out if it is the 2018 or 2019 version?