<https://secure.gravatar.com/avatar/572d121b70c573e0f1d483780179eccc?s=96&amp;d=mm&amp;r=g>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.healthquest-nf.com/how-to-prepare-for-surgery.html>