PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The material could be particularly transformative for wind and solar power, which can cause problems when fed into the power grid at low demand times.
http://www.w3.org/ns/prov#wasQuotedFrom
  • phys.org