<https://solutionsreview.com/crm/2019/10/01/really-simple-systems-releases-custom-charts-and-other-new-widgets/>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://solutionsreview.com/crm/2019/10/01/really-simple-systems-releases-custom-charts-and-other-new-widgets/>