https://docs.google.com/document/d/1F8FOVG5SO1BMw7NTny74qaiOtd3Xrf9pXC32n1590gw/edit?usp=sharing

https://docs.google.com/document/d/1sGZNLWUQhojHBKD8X_-7nWYnHiTtmpoMrszQWS9hdtE/edit?usp=sharing

https://docs.google.com/document/d/1uBGF0ur9eBecbLtw01SWb17ClaKNWadEVQVg2dyLzQI/edit?usp=sharing​