PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • And every particle that washes away causes problems downstream, including sedimentation ??? which can increase the risk of flooding ??? and the alarming dead zone in the Gulf of Mexico, the result of runoff of the chemical fertilizers farmers apply to make up for lost fertility.
http://www.w3.org/ns/prov#wasQuotedFrom
  • infiniteunknown.net