PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Substances which are harmful to the environment are produced in combustion processes such as for example, fossil fuel power plants, internal combustion engines, gas turbines, and the like.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com