<https://secure.gravatar.com/avatar/dcde23ace0a11725e526b99e7b6a88ec?s=96&amp;d=mm&amp;r=g>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.inventiva.co.in/trends/inventiva/yale-teaches-robots-not-to-mess-with-peoples-stuff/>