https://docs.google.com/document/d/10m22N98MpCRXsvGWFH6IEuHgD4t4l45bB-tiBX65cmE/edit?usp=sharing

https://docs.google.com/document/d/1eQnY2bjnlFnearNv4JbZN3CwpPEs89ULxYRD6EjxzFI/edit?usp=sharing