PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • In certain areas waste water is treated back to near-potable levels ??? levels where the water is not suitable for many applications, but could still be used for irrigation or other uses.
http://www.w3.org/ns/prov#wasQuotedFrom
  • boingboing.net