https://docs.google.com/document/d/1zBqidimzrsJ-vhDJtVPL8FYNU3NQP8sq4xKFvuSi2ZA/edit

https://docs.google.com/document/d/1QYVIquW52weM14nRuUHB1KgaICrPBs53Zqu7JRHOOvM/edit