PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Gases such as CARBON DIOXIDE which contribute to global warming, have recently gained recognition as pollutants by climate scientists, while they also recognize the carbon dioxide is essential for plant life through photosynthesis.
http://www.w3.org/ns/prov#wasQuotedFrom
  • saalad.com