PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • ???I do not view such a study as a high priority, but it would be worthwhile to do a serious study to understand the true greenhouse-gas footprint of coal versus conventional gas versus shale gas versus imported liquefied natural gas.???
http://www.w3.org/ns/prov#wasQuotedFrom
  • nationaljournal.com