PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Its active ingredient, diosgenin, is used to synthesize a number of steroids, including estrogen and progesterone.
http://www.w3.org/ns/prov#wasQuotedFrom
  • wisegeek.com