PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The estimated values of forest areas and the changes they undergo over time differ in particular according to the remote sensing tools and methods that are used, a fact that makes it difficult to compare estimates from one country to another or from one period to another.
http://www.w3.org/ns/prov#wasQuotedFrom
  • fao.org