PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • [2] The rise in CO2 in the proxy record prior to 1900 ??? what proportion can be attributed to human actions ??? given that both human population and industry were a fraction of what they are today?
http://www.w3.org/ns/prov#wasQuotedFrom
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