PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Yet organic farms are unsurpassed in eliminating the chemical contamination of water and soils, even including measures to reduce erosion and prevent the leakage of chemicals from neighboring, non-certified farms onto organic fields.
http://www.w3.org/ns/prov#wasQuotedFrom
  • simplesteps.org