PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Inventions such as the steam engine and steam power, electricity, and so on all contributed to the development of further energy sources and ever more complex machines.
http://www.w3.org/ns/prov#wasQuotedFrom
  • industrystore.ca