<https://safehomecentral.com/home-security-general/five-most-common-reasons-alarms-develop-faults-and-how-to-fix-them/#breadcrumb>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://safehomecentral.com/home-security-general/five-most-common-reasons-alarms-develop-faults-and-how-to-fix-them/>