PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Essentially, a volatile organic compound is a chemical or compound that contains such vapor pressure that it does not take much heat to vaporize the particular chemical or compound into a gaseous form.
http://www.w3.org/ns/prov#wasQuotedFrom
  • wisegeek.com