PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Carbon dioxide is a clear, odorless, nontoxic gas whose impact on climate change is very much a subject for scientific debate.[1] In recent testimony, Secretary of State Hillary Clinton declared that joining UNCLOS would not force the U.S. to regulate carbon dioxide emissions.
http://www.w3.org/ns/prov#wasQuotedFrom
  • heritage.org