PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Potassium nitrate is a form of nitrogen that is handy on soils that are low in potassium.
http://www.w3.org/ns/prov#wasQuotedFrom
  • agweb.com