<https://trastra.com/faq/trastra-mobile-app/where-do-i-get-the-trastra-mobile-app/#webpage>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://trastra.com/faq/trastra-mobile-app/where-do-i-get-the-trastra-mobile-app/>