<https://secure.gravatar.com/avatar/63f293940fef42523135a55305b8ce71?s=96&amp;d=mm&amp;r=g>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.derijscholenconcurrent.nl/en/practical-exam-motorcycle-avb/>