<https://www.beadsandpieces.com/2019/07/08/types-of-natural-wood-beads-part-2/#webpage>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.beadsandpieces.com/2019/07/08/types-of-natural-wood-beads-part-2/>