<https://pt.coursera.org/learn/emergence-of-life#mooc>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<http://schema.org/Course>
<https://pt.coursera.org/lecture/emergence-of-life/2-1-the-scientific-inquiry-of-carl-woese-8wuej>