<https://www.homebrewtalk.com/threads/n00b-question-i-cant-be-this-clueless-can-i.51853/>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.homebrewtalk.com/threads/n00b-question-i-cant-be-this-clueless-can-i.51853/>