<https://www.wrti.org/2012-03-07/inhalable-caffeine-maker-gets-warning-letter-from-fda>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.wrti.org/2012-03-07/inhalable-caffeine-maker-gets-warning-letter-from-fda>