https://docs.google.com/document/d/1lBTvzM-jJScuo8TZ5iJr845-lqWNoVtVGlCNqSL5L3E/edit

https://docs.google.com/document/d/1A7r50cZVFQdo-ayRyA3CFT-ktjJXXVPkyO99WBJ01DM/edit