<https://www.audicate.com/post/excelling-in-oet-audiobooks-on-audicate-for-healthcare-professionals-3>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.audicate.com/post/excelling-in-oet-audiobooks-on-audicate-for-healthcare-professionals-3>