<https://www.aquaticplantcentral.com/threads/l-aromatica-or-p-stellatus-broad-leaf.59930/>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.aquaticplantcentral.com/threads/l-aromatica-or-p-stellatus-broad-leaf.59930/#post-452562>