PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Risks include exposure to viruses, bacteria and other microbes, which can enter the Great Lakes from sewage overflow, as well as from contaminated surface water and groundwater sources.
http://www.w3.org/ns/prov#wasQuotedFrom
  • geotimes.org