<https://www.australianfrequentflyer.com.au/community/threads/ba-the-world-is-on-sale.60340/>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.australianfrequentflyer.com.au/community/threads/ba-the-world-is-on-sale.60340/#post-1053151>