PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The world???s soil is polluted by chemical compounds and toxic substances such as heavy metals, nitrates, pathogens, and plastics that take many years to break down.
http://www.w3.org/ns/prov#wasQuotedFrom
  • georgiaoceansandhealth.org