<https://testerwp.com/from-concept-to-reality-steps-to-develop-your-own-event-app-and-website/#article>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://testerwp.com/from-concept-to-reality-steps-to-develop-your-own-event-app-and-website/>