PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • USGS scientists assessed water quality in source (untreated) water from 6,600 wells in regionally extensive aquifers that supply most of the groundwater pumped for the Nation???s drinking water, irrigation, and other uses.
http://www.w3.org/ns/prov#wasQuotedFrom
  • psu.edu