<https://makezine.com/article/maker-news/kickrig-offers-a-convenient-slider-rig-for-shooting-video/#article>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://makezine.com/article/maker-news/kickrig-offers-a-convenient-slider-rig-for-shooting-video/>