<https://www.prnewswire.com/news-releases/gtls-landmark-patent-challenge-targets-securus-technologies-ip-portfolio-300085764.html>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.prnewswire.com/news-releases/gtls-landmark-patent-challenge-targets-securus-technologies-ip-portfolio-300085764.html>