PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • However this results in undesirable emissions of particulate matter and gases such as HCl and chlorine, which are often at unacceptable levels.
http://www.w3.org/ns/prov#wasQuotedFrom
  • osti.gov