<https://www.sneakerlost.es/blog/social-selling-redes-sociales-para-encontrar-interactuar-y-vender>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.sneakerlost.es/blog/social-selling-redes-sociales-para-encontrar-interactuar-y-vender>