<https://secure.gravatar.com/avatar/97c2635db4265d0fd00d4287fbafbdd7?s=96&amp;d=mm&amp;r=g>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.icebreakers.ws/get-to-know-you/who-done-it-whodunit.html>