<https://secure.gravatar.com/avatar/42c15d3e8ba9f8c9d2851758d09999b5?s=96&amp;d=mm&amp;r=g>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.scubadivermag.com/search-rescue-drone-trial-essex/>