https://docs.google.com/document/d/1qhK58-VUJv9U6T1AMCLnaYjxz4Z-wWOecYcKFNcDXqo/edit?usp=sharing

https://docs.google.com/document/d/1SRi4YRor1Vy4QBbaDJy3KF2-1hfiwJdo5zyXbIRTBUg/edit?usp=sharing