<https://secure.gravatar.com/avatar/00a7017d58b074559bd26d63a5b22ae5?s=96&amp;d=mm&amp;r=g>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://cosmosmagazine.com/technology/solar-powered-desalination/?amp=1>