<https://summit-e.com/what-to-do-and-not-to-do-before-and-during-a-power-outage/>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://summit-e.com/what-to-do-and-not-to-do-before-and-during-a-power-outage/>