<https://secure.gravatar.com/avatar/feedb0f226b2ba717b3e991f82d2557d?s=96&d=mm&r=g>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.estijeras.com/tijeras-de-podar-con-bateria-incorporada/>