PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Petroleum, natural gas, and coal are also just stored forms of solar energy, from plants and animals that lived and were buried long ago, while hydroelectric and wind power are derived from more contemporary solar-driven oceanic evaporation and atmospheric pressure gradients.
http://www.w3.org/ns/prov#wasQuotedFrom
  • nap.edu