<https://www.coachspecialists.com/blog/bouncing-back-how-to-maintain-your-rv-after-a-collision/>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.coachspecialists.com/blog/bouncing-back-how-to-maintain-your-rv-after-a-collision/>