https://docs.google.com/document/d/1-7yKlW5NnCysQcECQL3sP8qnFwVzJ7InPGOUr64P5RI/edit?usp=sharing

https://docs.google.com/document/d/1eM05t4Ior8XFANlSjYAHT0_m8Zd4j2m1PZsS07vkl48/edit?usp=sharing