<https://northumbrianlanguagesociety.co.uk/2020/10/09/the-2020-lecture-is-entitled-the-pitmans-pay/#webpage>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://northumbrianlanguagesociety.co.uk/2020/10/09/the-2020-lecture-is-entitled-the-pitmans-pay/>