PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Here is EPA: Naphthalene is a volatile organic compound (VOC) that is naturally present in fossil fuels such as petroleum and coal??? http://www.epa.gov/ogwdw/ccl/pdfs/reg_determine1/support_cc1_naphthalene...
http://www.w3.org/ns/prov#wasQuotedFrom
  • desmogblog.com