PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • If wind is an inefficient source of supply for electricity, the reason for the existence of wind farms is to abate significant levels of greenhouse gas levels that some believe are causing adverse warming trends in the earth???s climate.
http://www.w3.org/ns/prov#wasQuotedFrom
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