<https://www.jarroldtraining.co.uk/the-nebosh-general-certificate-has-changedand-for-the-better/>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.jarroldtraining.co.uk/the-nebosh-general-certificate-has-changedand-for-the-better/>