PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Unacceptable levels of chemicals and toxins, such as arsenic, nitrates, mercury and lead, to name a few, have been reported in the ground water from various states.
http://www.w3.org/ns/prov#wasQuotedFrom
  • bio-medicine.org