<https://tw.element14.com/bulgin/pxp4011-04p-3035/circular-connector-plug-4pos-cable/dp/2882792>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://tw.element14.com/bulgin/pxp4011-04p-3035/circular-connector-plug-4pos-cable/dp/2882792>