<https://secure.gravatar.com/avatar/4eaf36b8840a84e8bfedf2317fa58c94?s=96&amp;d=mm&amp;r=g>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://cmbrokers.net/como-deberia-ser-un-corredor-de-seguros/>