<https://www.royalcaribbeanblog.com/boards/index.php?/topic/25076-global-entry/#comment-273766>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.royalcaribbeanblog.com/boards/index.php?/topic/25076-global-entry/&tab=comments#comment-273765>