<https://www.stepchangeinsafety.net/resources/pack-2-bowties-and-safety-and-environmental-critical-elements/#identity>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.stepchangeinsafety.net/resources/pack-2-bowties-and-safety-and-environmental-critical-elements/>