PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Further, the water used in fracking has the potential to intermingle with drinking water, which is especially alarming because the chemical compounds used in fracking have been cited as including chemicals known to cause cancer.
http://www.w3.org/ns/prov#wasQuotedFrom
  • djilp.org