<https://secure.gravatar.com/avatar/80e17bafc6ddf8b2aa5bbd2e8df26805?s=96&amp;d=mm&amp;r=g>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://psychedelische-therapie-nederland.nl/en/the-difference-between-mdma-and-psilocybin/>