PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The next 50 years is the most difficult time to affect CO2 emissions, because of the inertia of global energy systems, as evidenced by Fig. 4.
http://www.w3.org/ns/prov#wasQuotedFrom
  • wattsupwiththat.com