PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Unclean water and untreated sewage are responsible for the spread of water-borne diseases such as cholera and intestinal parasites (Box 7).
http://www.w3.org/ns/prov#wasQuotedFrom
  • unep.org