PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • And the high environmental and human costs of using corn, soybeans, and other food crops to produce biofuels should spur government initiatives to develop more sustainable forms of renewable energy, such as wind power, solar power, and ??? one day, perhaps ??? algal biofuels grown at waste treatment plants.
http://www.w3.org/ns/prov#wasQuotedFrom
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