PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Carbon dioxide is the most prominent greenhouse gas responsible for global warming, and nitrogen and sulfur oxides (NOx and SOx) are known to cause acid rain and photochemical smog.
http://www.w3.org/ns/prov#wasQuotedFrom
  • sof.or.jp