<http://thetrademarkninja.com/2017/01/24/whats-a-shadow-tracker-when-its-at-home-lads-tencent-tencent-shadowtracker/#webpage>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://thetrademarkninja.com/2017/01/24/whats-a-shadow-tracker-when-its-at-home-lads-tencent-tencent-shadowtracker/>