PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • We have actually tried exactly to do what you are asking for -- looking at the trends from a large number of different areas, including climate and biodiversity, along with health and other indicators, as I describe here (such as war and education).
http://www.w3.org/ns/prov#wasQuotedFrom
  • project-syndicate.org