PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The United States alone is responsible for 27% of harmful exhaust emissions such as carbon dioxide, carbon monoxide, nitrogen oxides, sulfur and more, all of which cause damage to the earth by means of its heat-trapping effect.
http://www.w3.org/ns/prov#wasQuotedFrom
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