PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Municipal water sources, however, may become contaminated during states of emergency, such as earthquakes, floods, acts of terrorism, acts of war, and the like.During such emergencies it may be difficult, if not impossible, for potable water to be delivered to residences and/or places of business.
http://www.w3.org/ns/prov#wasQuotedFrom
  • freepatentsonline.com