https://docs.google.com/document/d/1AzQ5PGufV9sroGi2YgaTgFicFCr3SurFbsYpTb_PYzw/edit?usp=sharing

https://docs.google.com/presentation/d/1Jbncn3hC0PT0ly3BzOZOMJfmYaI751cgDKIgWVuJRos/edit?usp=sharing