<https://secure.gravatar.com/avatar/f4bfa411c6f9abc9f31c7798935960e7?s=96&amp;d=mm&amp;r=g>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://iloveretro.es/iluminacion/bombillas/bombillas-led/7w/>