PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Carefully monitoring the mix of natural gas and air consumed by burners in heating plant boilers, ovens, heaters and other equipment minimizes fuel consumption, lowers plant energy costs and reduces pollutant emissions.
http://www.w3.org/ns/prov#wasQuotedFrom
  • wateronline.com