<https://secure.gravatar.com/avatar/7412898bc56ec5896f1538556e5e65dc?s=96&amp;d=mm&amp;r=g>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://luxmanlight.com/de/sind-solarstrasenlaternen-hell-genug/>