7+Cecilia

media type="youtube" key="JhKQz2TwSAE" width="560" height="315"

https://www.youtube.com/watch?v=JhKQz2TwSAE

https://docs.google.com/presentation/d/1yihs_FL9K1BSJOAiykrwq9NzZrRVQA4U6A2Yi9CrFIA/edit?ts=56eba881#slide=id.g1043bdcaf5_0_47