You've only gathered the key points. I think I've been able to organize things that were scattered and not connected here and there thanks to the instructor. What's regrettable is that the bot works well on the laptop, but I couldn't fix the errors that occurred when uploading it to AWS. It wasn't urgent, so I put it off. Since you only lectured on the key points, I think there are quite a few parts that are lacking here and there. Thanks to you, I studied a lot. Thank you.