PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Q: What percentage of our current electrical power use do you think wind could provide, and what are the technical and other challenges to scaling up US windpower installations to meet this benchmark?
http://www.w3.org/ns/prov#wasQuotedFrom
  • energybulletin.net