<https://secure.gravatar.com/avatar/3491b32a83c92ac0cc9cad5a349b9738?s=96&amp;d=mm&amp;r=g>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.wba.asn.au/events-single-detail/an-introduction-to-google-ads/>