PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Estriol is a weak form of estrogen made by the fetal placental unit and appearing in appreciable amounts only in pregnant women.
http://www.w3.org/ns/prov#wasQuotedFrom
  • sciencedaily.com