PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Today 99 percent of the raw materials used to make paint, plastics, fertilizers, pharmaceuticals and other chemical products come from petroleum or natural gas, according to Atsumi.
http://www.w3.org/ns/prov#wasQuotedFrom
  • phys.org