PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Measures to protect endangered species within this ecosystem were already thought necessary in the nineteenth century, yet tropical deforestation is a major and ever growing problem.
http://www.w3.org/ns/prov#wasQuotedFrom
  • fao.org