<https://vanwaardetrainingen.nl/2017/10/24/transactionele-analyse-opgejut-door-je-drivers/#webpage>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://vanwaardetrainingen.nl/2017/10/24/transactionele-analyse-opgejut-door-je-drivers/>