PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Fathers were asked questions about their mental health, such as whether they felt blue or fearful, when the mothers were four to five months' pregnant.
http://www.w3.org/ns/prov#wasQuotedFrom
  • bettermedicine.com