PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Students will measure chemical and physical variables such as temperature, pH, salinity and levels of oxygen, nitrogen and phosphates from wetland and river water, said James.
http://www.w3.org/ns/prov#wasQuotedFrom
  • covnews.com