<https://www.gds-repair-dallas-tx.com/things-to-know-about-the-garage-door-opener-safety-sensors/garagedoorsensors/#breadcrumblist>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.gds-repair-dallas-tx.com/things-to-know-about-the-garage-door-opener-safety-sensors/garagedoorsensors/>