PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Turning water into oxygen and hydrogen, especially using just sunlight, is obviously a very important tech for humanity's future, and making it cheap is the obvious next step as we have been able to do it for some time.
http://www.w3.org/ns/prov#wasQuotedFrom
  • phys.org