PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • That waste often contains excessive nitrogen and phosphorus, pathogens, metals such as arsenic, and sediment.
http://www.w3.org/ns/prov#wasQuotedFrom
  • pewenvironment.org