<https://secure.gravatar.com/avatar/0c1dbf2ab1ffd490164b8a481efde81f?s=96&amp;d=wavatar&amp;r=g>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://mobailgamer.com/hay-day/como-desvincular-facebook-de-hay-day/>