<https://www.sierraparts.com/en-us/power-systems/shore-power/sp_13-1315-131501-131501006-324687>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.sierraparts.com/en-us/power-systems/shore-power/ac12390-340860>