PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • It consumes 9 to 12,000 tons of coal a day to supply electricity to 300,000 homes (that???s 80 pounds of coal per home per day), and emits about 750,000 tons of CO2 per year to do that???that???s two and a half tons of CO2 per household, anda total of about 23,500 tons of sulfur dioxide, as well as large quantities of mercury, lead and other heavy metals and radioactive elements.
http://www.w3.org/ns/prov#wasQuotedFrom
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