<https://secure.gravatar.com/avatar/32bdfb38380a375c7c33e5a0d621d135?s=96&d=mm&r=g>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://finzfirm.com/blog/loose-railings-and-other-safety-issues-of-concern-on-cruise-ships/>