<https://www.gaiagps.com/datasummary/track/e1dfab7e45c38170865234e5cd96b21e/>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.gaiagps.com/datasummary/track/e1dfab7e45c38170865234e5cd96b21e/>