<https://www.orchidandopal.com/blog/category/search-tutorials-by-bead-shape/nib-bit-beads#webpage>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.orchidandopal.com/blog/category/search-tutorials-by-bead-shape/nib-bit-beads>