PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • For example, although sea walls??? only benefit is the prevention of coastal erosion ??? and these expensive structures are often undermined and cause a variety of problems ??? mangrove forests can protect coasts while also providing critically important nurseries for fish and shellfish, habitat for birds and other animals, and absorbing carbon dioxide.
http://www.w3.org/ns/prov#wasQuotedFrom
  • grist.org