PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Recent research advances have led to the development of fuel cell devices which utilize bacteria as catalysts to create useful products, such as electricity and hydrogen.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com