PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • One quarter of industrial deaths--more than 250,000 a year--result from exposure to hazardous substances, which cause such disabling illnesses as cancer and cardiovascular, respiratory and nervous system disorders.
http://www.w3.org/ns/prov#wasQuotedFrom
  • wsws.org