<https://www.qsource.com/blog_post/get-the-most-out-of-your-web-account>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.qsource.com/blog/401/learn-how-to-get-the-most-out-of-your-q-source-web-account>