<https://www.cleanenergy-project.de/#organization>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.cleanenergy-project.de/technologie/wissenschaft/mythos-pestizide-sind-unentbehrlich-fuer-die-welternaehrung/attachment/aerial-photo-of-a-combine-harvesting-corn/>