PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Nonpoint source nutrient losses -- primarily nitrogen and phosphorous -- from agriculture and other land uses cause significant water pollution in many regions of the country, including the Susquehanna-Chesapeake watershed, which is home to more than 17 million people.
http://www.w3.org/ns/prov#wasQuotedFrom
  • psu.edu