PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Harmful algal blooms like the current one are a symptom of eutrophication, a phenomenon caused by excess nutrients such as phosphorus that wash into streams and eventually the Great Lakes from cities and farms.
http://www.w3.org/ns/prov#wasQuotedFrom
  • nwf.org