PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Urban runoff may contain heavy metals such as cadmium and lead, inorganic chemicals, petroleum products, de-icing salts, pathogens and animal wastes.
http://www.w3.org/ns/prov#wasQuotedFrom
  • yale.edu