PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • n the levels of salts, nitrates and chlorides, as well as heavy metal contaminations such as copper and lead, which deem it unsuitable for drinking or agricultural use.
http://www.w3.org/ns/prov#wasQuotedFrom
  • middleeastmonitor.com