PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The pollution, stemming from a variety of activities such as agriculture, forestry, urban and industrial development, is either discharged directly to the river systems or lakes, to the groundwater or indirectly through air pollution.
http://www.w3.org/ns/prov#wasQuotedFrom
  • un.org