<https://blog.dominiontea.com/2014/03/13/what-is-earl-grey-tea-really/bergamot-tree/>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://blog.dominiontea.com/2014/03/13/what-is-earl-grey-tea-really/bergamot-tree/>