PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Fracking was transformed when it was combined with horizontal drilling and other new technologies, such as 3D seismic imaging.
http://www.w3.org/ns/prov#wasQuotedFrom
  • geoexpro.com