PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Wind is an alternate energy source , and I guess the max amount of energy that can be extracted from it without affecting the planet significantly is a given amount, +- natural variance.
http://www.w3.org/ns/prov#wasQuotedFrom
  • metafilter.com