PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • But what seems to have occurred in the last quarter of the 20th century is that in fact there was an overabundance of food relative to our energy expenditures, and the population started to get heavier, and so you can see that really in the last 25 or 30 years.
http://www.w3.org/ns/prov#wasQuotedFrom
  • pbs.org