<https://secure.gravatar.com/avatar/864bf84cfffb4a8b2a9103a486ac2e93?s=96&amp;d=blank&amp;r=g>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://persiancatalyst.com/sales-and-repair-of-catalysts-with-senwa-x25/>