https://docs.google.com/document/d/1OBH-q2ipmRhU4A7zFe9JjVM0m2zWXSa7MhU4X1M-iRc/edit?usp=sharing

https://docs.google.com/document/d/14-mT3Rn3lAqM0WmZBT8iRKisZOKtuyRLNGRYT7TCq-8/edit?usp=sharing

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