PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • 1859: John Tyndall determines that coal gas, a mix of methane, carbon dioxide and other gases, strongly absorb infrared radiation.
http://www.w3.org/ns/prov#wasQuotedFrom
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