<https://secure.gravatar.com/avatar/9409c61e986a70ef4e328e03d7094cb8?s=96&amp;r=g>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://overenergievergelijken.nl/zonnepanelen/wat-is-salderen-metdezon/>