<https://gemlapidary.com/product/gem-faceting-machine-standard-single-use-single-lap-table-top-two-speed/>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://gemlapidary.com/product/gem-faceting-machine-standard-single-use-single-lap-table-top-two-speed/>