PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Understanding and predicting the effect of CBM-produced water on stream-water quality is complicated by many factors including local hydrology and geology, stream chemistry, land use, and climate.
http://www.w3.org/ns/prov#wasQuotedFrom
  • usgs.gov