PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • A number of additional measures could be envisaged to further improve the safety and environmental performance of tankers and other vessels, and of offshore oil rigs.
http://www.w3.org/ns/prov#wasQuotedFrom
  • unep.org