PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • My guess is that beginning in 1862 through about 1900 that was far less than 1 per cent of the global population. (It???s also fascinating that Verne was the first we know of to imagine this, from the explosion of a giant boiler, when in fact much of the reason will likely come not from the explosion but instead merely the intended use of boilers burning gas, oil and especially coal.
http://www.w3.org/ns/prov#wasQuotedFrom
  • thinkprogress.org