PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Thimerosal is a preservative that has been used in some vaccines since the 1930s (CDC, retrieved June 2005).
http://www.w3.org/ns/prov#wasQuotedFrom
  • necc.org