PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • About 60 percent of the world's carbon dioxide emissions come from power plants, refineries and other industries, said Sally Benson, professor (research) of energy resources engineering at Stanford.
http://www.w3.org/ns/prov#wasQuotedFrom
  • phys.org