PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Nostalgia was a source of suffering, causing symptoms such as irregular heartbeats, anxiety, insomnia, and disordered eating.
http://www.w3.org/ns/prov#wasQuotedFrom
  • theconversation.com