PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Chemists describe solar energy progress and challenges, including the 'artificial leaf' ... leaf's chemical magic with photosynthesis ??? but instead converts sunlight and water into a liquid fuel such as methanol ... use solar energy when they capture and convert sunlight into chemical fuel through photosynthesis.
http://www.w3.org/ns/prov#wasQuotedFrom
  • esciencenews.com